1. Hole diameter: 1", overall size: 35 x 52mm / 1-3/8" x 2-3/64" (Max.D*L)

2. Good elasticity, high precision, run-out tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These collets conform to DIN 6388 standards

1. Hole diameter: 1/16" (1.59mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

No return,no refund after purchase

1. Hole diameter: 1/4" (6.35mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

No return,no refund after purchase

1. Hole diameter: 1/4", overall length is 1-3/8" (35mm)

2. Material: high-grade 65Mn

3. Clamping range: 7/32" - 1/4" (0.212" - 0.25")

4. Total runout less than .00031 on these precise ER25 collets

1. Hole diameter: 1/8", overall size: 35 x 52mm / 1-3/8" x 2-3/64"(Max.D*L)

2. Good elasticity, high precision, run-out tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These collets conform to DIN 6388 standards

1. Hole diameter: 1/8", overall length is 1-3/8" (35mm)

2. Material: high-grade 65Mn

3. Clamping range:3/32" - 1/8"(0.086" - 0.125"）

4. Total runout less than .00031 on these precise ER25 collets

1. 10pc ER16 collet set : 1/32" - 3/8" by 32th (1/32,1/16,3/32,1/8,3/16,7/32,1/4,5/16,11/32,3/8)

2. All collets are made of high quality alloy spring steel 0.0005" accuracy

3. Hardened and precision ground

4. 1pc 3/4-ER16-3.94" collet chuck, 15PCS ER40 collets, 1pc ER40 spanner

5. Rear thread 3/8" - 16

6. Fitted plastic case

1. 10pc ER20 collet set : 1/32" - 3/8" by 32th (3/32",1/8",3/16",7/32",1/4",5/16",11/32",3/8",7/16",1/2")

2. All collets are made of high quality alloy spring steel 0.0005" accuracy

3. Hardened and precision ground

4. 1pc R8 collet chuck, 10PCS ER20 collets, 1pc ER20 spanner

5. Fitted plastic case

1. Hole diameter: 11/16", overall size: 35 x 52mm / 1-3/8" x 2-3/64" (Max.D*L)

2. Good elasticity, high precision, run-out tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These collets conform to DIN 6388 standards

1. Hole diameter: 11/16" (17.46mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

1. Hole diameter: 13/16", overall size: 35 x 52mm / 1-3/8" x 2-3/64" (Max.D*L)

2. Good elasticity, high precision, run-out tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These collets conform to DIN 6388 standards

1. Hole diameter: 15/16", overall size: 35 x 52mm / 1-3/8" x 2-3/64" (Max.D*L)

2. Good elasticity, high precision, run-out tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These collets conform to DIN 6388 standards

1. Hole diameter: 15/32", overall length is 1-3/8" (35mm)

2. Material: high-grade 65Mn

3. Clamping range: 7/16" - 15/32" （0.429" - 0.468"）

4. Total runout less than .00031 on these precise ER25 collets

1. Hole diameter: 17/32" (13.49mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

No return,no refund after purchase

1. Hole diameter: 19/32" (15.08mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

No return,no refund after purchase

1. Hole diameter: 19/32", overall length is 1-3/8" (35mm)

2. Material: high-grade 65Mn

3. Clamping range: 9/16" - 19/32" (0.554" - 0.593"）

4. Total runout less than .00031 on these precise ER25 collets

1. Hole diameter: 21/32" (16.67mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.00059"

No return,no refund after purchase

1. Hole diameter: 23/32" (18.256mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

No return,no refund after purchase

1. Hole diameter: 3/16", overall size: 35 x 52mm / 1-3/8" x 2-3/64" (Max.D*L)

2. Good elasticity, high precision, run-out tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These collets conform to DIN 6388 standards

1. Hole diameter: 3/16" (4.76mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

No return,no refund after purchase

1. Hole diameter: 3/16", overall length is 1-7/32" (31mm)

2. Material: high-grade 65Mn

3. Clamping range: 5/32" - 3/16" (0.148" - 0.187"）

4. Total runout less than .00031" on these precise ER20 collets

1. Hole diameter: 3/16", overall length is 1-3/8" (35mm)

2. Material: high-grade 65Mn

3. Clamping range: 5/32" - 3/16" (0.148" - 0.187"）

4. Total runout less than .00031 on these precise ER25 collets

1. Hole diameter: 3/32" (2.38mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

No return,no refund after purchase

1. Hole diameter: 3/4", overall size: 35 x 52mm / 1-3/8" x 2-3/64" (Max.D*L)

2. Good elasticity, high precision, run-out tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These collets conform to DIN 6388 standards

1. Hole diameter: 3/8", overall size: 35 x 52mm / 1-3/8" x 2-3/64" (Max.D*L)

2. Good elasticity, high precision, run-out tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These collets conform to DIN 6388 standards

1. Hole diameter: 3/8" (9.525mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

1. Hole diameter: 3/8", overall length is 1-3/8" (35mm)

2. Material: high-grade 65Mn

3. Clamping range: 11/32" - 3/8" (0.336" - 0.375")

4. Total runout less than .00031 on these precise ER25 collets

1. Hole diameter: 5/16", overall size: 35 x 52mm / 1-3/8" x 2-3/64" (Max.D*L)

2. Good elasticity, high precision, run-out tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These collets conform to DIN 6388 standards

1. Hole diameter: 5/16" (7.94mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

1. Hole diameter: 5/16", overall length is 1-7/32" (31mm)

2. Material: high-grade 65Mn

3. Clamping range: 9/32" - 5/16" (0.273" - 0.312"）

4. Total runout less than .00031 on these precise ER20 collets

1. Hole diameter: 5/16", overall length is 1-3/8" (35mm)

2. Material: high-grade 65Mn

3. Clamping range: 9/32" - 5/16" （0.273" - 0.312"）

4. Total runout less than .00031 on these precise ER25 collets

1. Hole diameter: 5/32" (3.97mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

No return,no refund after purchase

1. Hole diameter: 5/32", overall length is 1-7/32" (31mm)

2. Material: high-grade 65Mn

3. Clamping range: 1/8" - 5/32"(0.117" - 0.156"）

4. Total runout less than .00031 on these precise ER20 collets

1. Hole diameter: 5/8", overall size: 35 x 52mm / 1-3/8" x 2-3/64" (Max.D*L)

2. Good elasticity, high precision, run-out tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These collets conform to DIN 6388 standards

1. Hole diameter: 5/8" (15.875mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

No return,no refund after purchase

1. 15pc ER40 collet set : 1/8" - 1" by 16th (1/8", 3/16", 1/4", 5/16", 3/8", 7/16",1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1")

2. All collets are made of high quality alloy spring steel 0.0005" accuracy

3. I.D Thread is 1.041"-24UNF, O.D is 1.238-20UNF

4. 1pc5C-ER40 collet chuck, 15PCS ER40 collets, 1pc ER40 spanner

1. Hole diameter: 7/16", overall size: 35 x 52mm / 1-3/8" x 2-3/64"(Max.D*L)

2. Good elasticity, high precision, run-out Tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These collets conform to DIN 6388 standards

1. Hole diameter: 7/16", overall length is 1-3/8" (35mm)

2. Material: high-grade 65Mn

3. Clamping range: 13/32" - 7/16" (0.398" - 0.437")

4. Total runout less than .00031 on these precise ER25 collets

1. Hole diameter: 7/32" (5.56mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

No return,no refund after purchase

1. Hole diameter: 7/8", overall size: 35 x 52mm / 1-3/8" x 2-3/64"(Max.D*L)

2. Good elasticity, high precision, run-out tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These collets conform to DIN 6388 standards

1. Hole diameter: 7/8" (22.225mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

1. Hole diameter: 9/16", overall size: 35 x 52mm / 1 3/8" x 2 3/64" (Max.D*L)

2. Good elasticity, high precision, run-out tolerance 0.00059"

3. Using high quality spring steel is stable in perfomance

4. These OZ collets conform to DIN 6388 standards

1. Hole diameter: 9/16" (14.29mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

No return,no refund after purchase

1. Hole diameter: 9/16", overall length is 1-3/8" (35mm)

2. Material: high-grade 65Mn

3. Clamping range: 17/32" - 9/16" (0.542" - 0.562"）

4. Total runout less than .00031 on these precise ER25 collets

1. Hole diameter: 9/32" (7.14mm), overall length is 4" (101.6mm)

2. High grade collet steel

3. Drawbar thread: 7/16" - 20

4. Good elasticity, high precision, run-out tolerance 0.0012"

No return,no refund after purchase

1. Hole diameter: 9/32", overall length is 1-7/32" (31mm)

2. Material: high-grade 65Mn

3. Clamping range: 1/4" - 9/32" （0.25" - 0.281"）

4. Total runout less than .00031 on these precise ER20 collets

1. Hole diameter: 9/32", overall length is 1-3/8" (35mm)

2. Material: high-grade 65Mn

3. Clamping range: 1/4" - 9/32" (0.25" - 0.281"）

4. Total runout less than .00031 on these precise ER25 collets

1. 8 pcs ER32 chucks sets includes the following collet sizes: 5/32" ,1/4",5/16", 3/8", 1/2", 9/16, 5/8" and 3 /4"

2. 1 pcs pull stud, 1 pcs spanner and 1 pcs clamping nut

3. BT40-ER32 chuck holder 

4. Comprehensive accuracy to 0.0003"

5. Balanced to 20000 rpm @ G6.3

6. With fitted case

1. 12pc ER32 collet set : 3/32" - 3/4" by 16th (3/32",1/8", 3/16", 1/4", 5/16", 3/8", 7/16",1/2", 9/16", 5/8", 11/16", 3/4")

2. All collets are made of high quality alloy spring steel 0.0005" accuracy

3. Rear Thread is 5/8"-11

4. G6.3 balanced to 12000rpm

5. 1pc CAT-ER32-70 collet chuck, 12PCS ER32 collets, 1pc ER32 spanner

1. 15pc ER40 collet set : 1/8" - 1" by 16th (1/8", 3/16", 1/4", 5/16", 3/8", 7/16",1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1")

2. All collets are made of high quality alloy spring steel 0.0005" accuracy

3. G6.3 balanced to 12000rpm

4. 1pc CAT40-ER40-80 collet chuck, 15PCS ER40 collets, 1pc ER40 spanner

1. Qty of hole: 12 pcs (4 x 3)

2. Interchangeable with all ER type collets

3. Protects, stores and organizes collets

4. Red baked enamel finish for easy cleaning and protection

1. Qty of hole: 15 pcs (5 x 3)

2. Interchangeable with all ER type collets

3. Protects, stores and organizes collets

4. Red baked enamel finish for easy cleaning and protection

1. Hole diameter : 13/32", overall length is 1-5/64" (27mm)

2. Material: High-Grade 65Mn

3. Clamping Range: 3/8" - 13/32"(0.375" - 0.406"）

4. Good elasticity, high precision, runout tolerance 0.00059"

1. Hole diameter: 13/32", overall length is 1-5/64" (27mm)

2. Material: high-grade 65Mn

3. Clamping range: 3/8" - 13/32" (0.367" - 0.406"）

4. Total runout less than .00031 on these precise ER16 collets

1. Hole diameter: 9/32", overall length is 1-5/64" (27mm)

2. Material: high-grade 65Mn

3. Clamping range: 1/4" - 9/32" (0.242" - 0.281")

4. Total runout less than .00031 on these precise ER16 collets

1. Hole diameter: 1/8", overall length is 1-7/32" (31mm)

2. Material: high-grade 65Mn

3. Clamping range: 3/32" - 1/8"(0.086" - 0.125"）

4. Good elasticity, high precision, runout tolerance 0.00031"

1. Hole diameter: 13/32", overall length is 1-7/32" (31mm)

2. Material: high-grade 65Mn

3. Clamping range: 3/8" - 13/32" (0.367" - 0.406"）

4. Total runout less than .00031 on these precise ER20 collets

1. Hole diameter : 9/32", overall length1-15/64"

2. Material: High-Grade 65Mn

3. Clamping Range: 1/4" - 9/32''(0.25" - 0.281"）

4. Good elasticity, high precision, runOut tolerance 0.00059"

1.Hole Diameter: 13/32", overall length is 1 - 11/32"

2.Material: High Grade 65Mn

3.Clamping Range: 3/8"-13/32"（0.375" - 0.406"）

4.Good elasticity, high precision, Run-Out Tolerance 0.00059"

1.Hole Diameter: 17/32", overall length is 1 - 11/32"

2.Material: High Grade 65Mn

3.Clamping Range: 3/64" - 17/32"(0.516" - 0.531") 

4.Good elasticity, high precision, Run-Out Tolerance ≤ 0.00059"

1. Hole Diameter: 5/32", overall length is 1 - 11/32"

2. Material: High Grade 65Mn

3. Clamping Range: 9/64" - 5/32" (0.141" - 0.156")

4. Good elasticity, high precision, Run-Out Tolerance 0.00059"

1. Hole diameter: 1/4", overall length is 1-37/64" (40mm)

2. Material: high-grade 65Mn

3. Clamping range: 7/32" - 1/4" (0.211" - 0.25")

4. Total runout less than .00031" on these precise ER32 collets

1. Hole diameter: 1/8", overall length is 1-37/64" (40mm)

2. Material: high-grade 65Mn

3. Clamping range: 3/32" - 1/8" (0.086" - 0.125")

4. Total runout less than .00031 on these precise ER32 collets

1. Hole diameter: 11/16", overall length is 1-37/64" (40mm)

2. Material: high-grade 65Mn

3. Clamping range: 21/32" - 11/16" (0.648" - 0.687")

4. Total runout less than .00031" on these precise ER32 collets

No return,no refund after purchase

1. Hole diameter: 15/32", overall length is 1-37/64" (40mm)

2. Material: high-grade 65Mn

3. Clamping range: 7/16" - 15/32" (0.429" - 0.468")）

4. Total runout less than .00031" on these precise ER32 collets

1. Hole diameter: 19/32", overall length is 1-37/64" (40mm)

2. Material: high-grade 65Mn

3. Clamping range: 9/16" - 19/32" (0.554" - 0.593")

4. Total runout less than .00031" on these precise ER32 collets

No return,no refund after purchase

1. Hole diameter: 21/32", overall length is 1-37/64" (40mm)

2. Material: high-grade 65Mn

3. Clamping range: 5/8" - 21/32" (0.625" - 0.656")

4. Total runout less than .00031" on these precise ER32 collets

1. Hole diameter: 3/16", overall length is 1-37/64" (40mm)

2. Material: high-grade 65Mn

3. Clamping range: 5/32" - 3/16" (0.148" - 0.187")

4. Total runout less than .00031 on these precise ER32 collets

1.Hole Diameter: 5/16", overall length is 1 - 37/64"

2.Material: High Grade 65Mn

3.Clamping Range: 9/32" - 5/16"(0.281" - 0.313"）

4.Good elasticity, high precision, Run-Out Tolerance ≤ 0.00059"

1. Hole diameter: 5/16", overall length is 1-37/64" (40mm)

2. Material: high-grade 65Mn

3. Clamping range: 9/32" - 5/16" (0.173" - 0.312")

4. Total runout less than .00031 on these precise ER32 collets

1. Hole diameter: 5/8", overall length is 1-37/64" (40mm)

2. Material: high-grade 65Mn

3. Clamping range: 19/32" - 5/8" (0.586" - 0.625")

4. Total runout less than .00031 on these precise ER32 collets

1. Hole diameter: 7/16", overall length is 1-37/64" (40mm)

2. Material: high-grade 65Mn

3. Clamping range: 13/32" - 7/16" (0.398" - 0.437")

4. Total runout less than .00031 on these precise ER32 collets

1. Hole diameter: 9/16", overall length is 1-37/64" (40mm)

2. Material: high-grade 65Mn

3. Clamping range: 17/32" - 9/16" (0.523" - 0.562")

4. Total runout less than .00031" on these precise ER32 collets

1. Hole diameter: 9/32", overall length is 1-37/64" (40mm)

2. Material: high-grade 65Mn

3. Clamping range: 1/4" - 9/32" (0.261" - 0.281")

4. Total runout less than .00031 on these precise ER32 collets

1. Hole Diameter: 1/8", overall length is 1 - 37/64"

2. Material: High Grade 65Mn

3. Clamping Rang: 7/64" - 1/8"(0.109" - 0.125"）

4. Good elasticity, high precision, Run-Out Tolerance ≤ 0.00059"

1. Hole Diameter: 5/8", overall length is 1-37/64"

2. Material: High Grade 65Mn

3. Clamping Range: 39/64" - 5/8"(0.605" - 0.625"）

4. Good elasticity, high precision, Run-Out Tolerance ≤ 0.00059"

1. Hole diameter: 1/4", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range: 7/32" - 1/4" (0.211" - 0.2500")

4. Total runout less than .00031 on these precise ER40 collets

1. Hole diameter: 1/8", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range: 3/32" - 1/8" (0.086" - 0.125")

4. Total runout less than .00031 on these precise ER40 collets

1. Hole diameter: 11/16", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range: 21/32" - 11/16" (0.648" - 0.687")

4. Total runout less than .00031 on these precise ER40 collets

1. Hole diameter: 13/16", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range: 25/32" - 13/16" (0.773" - 0.812")

4. Total runout less than .00031 on these precise ER40 collets

1. Hole diameter: 19/32", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range: 9/16" - 19/32" (0.554" - 0.593")

4. Total runout less than .00031 on these precise ER40 collets

1. Hole diameter: 29/32", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range: 7/8" - 29/32" (0.867" - 0.906")

4. Total runout less than .00031 on these precise ER40 collets

1. Hole diameter: 3/4", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range: 23/32" - 3/4" (0.711" - 0.75")

4. Total runout less than .00031 on these precise ER40 collets

1. Hole diameter: 5/16", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range: 9/32" - 5/16" (0.273" - 0.312")

4. Total runout less than .00031 on these precise ER40 collets

1. Hole diameter: 5/32", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range: 1/8" - 5/32"(0.127" - 0.156")

4. Total runout less than .00031 on these precise ER40 collets

1. Hole Diameter: 5/8", overall length is 1 - 13/16"

2. Material: High Grade 65Mn

3. Clamping Range: 5/8" - 19/32"

4. Good elasticity, high precision, Run-Out Tolerance ≤ 0.00059"

1. Hole diameter: 7/8", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range:  19/32" - 5/8" (0.586" - 0.625")

4. Total runout less than .00031 on these precise ER40 collets

1. Hole diameter: 7/16", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range: 13/32" - 7/16" (0.398" - 0.437")

4. Total runout less than .00031 on these precise ER40 collets

1. Hole diameter: 7/8", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range: 27/32" - 7/8" (0.836" - 0.875")

4. Total runout less than .00031 on these precise ER40 collets

1. Hole diameter: 9/32", overall length is 1-13/16" (46mm)

2. Material: high-grade 65Mn

3. Clamping range: 1/4" - 9/32" (0.242" - 0.281")

4. Total runout less than .00031 on these precise ER40 collets

1. Drawbar Thread 1/2" - 13TPI

2. Spring collets are hardened and ground for maximun holding power and ultra precision

3. 16 pcs MT3 set include: collet chuck, 15 full grip collets 1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16",1" and spanner wrench

1. 11pc ER32 collet set : 1/8" - 3/4" by 16th (1/8", 3/16", 1/4", 5/16", 3/8", 7/16",1/2", 9/16", 5/8", 11/16", 3/4")

2. All collets are made of high quality alloy spring steel 0.0005" accuracy

3. Rear Thread is 1/2"-13

4. 1pc MT3-ER32 collet chuck, 11PCS ER32 collets, 1pc ER32 spanner

• Precision-ground and hardened to exacting tolerances
• Concentricity: ±0.0005" TIP
• This set includes 7 individual R8 collets , 1/8, 3/16, 1/4, 3/8, 1/2, 5/8, 3/4,
• Fits any standard R8 spindle
• Made of high grade tool steel
• Iternally thread: 7/16"-20
• Hardend and precision ground

1. Drawbar Thread: 7/16" - 20 TPI

2. Spring collets are hardened and ground for maximum holding power and ultra precision

3. 16 pcs R8 set includes: collet chuck, 15 full grip collets 1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16" 1" and spanner wrench 

1. Drawbar Thread 7/16" - 20TPI

2. Spring collets are hardened and ground for maximun holding power and ultra precision

3. 8 pcs R8 set includes: collet chuck, 7 full grip collets 1/4", 5/16", 3/8",1/2", 5/8", 3/4", 1"  and spanner wrench