R8 Collets
Use these collets to securely hold round-shank tool bits in the R8 spindle of a milling machine. They have internal threads.
For technical drawings and 3-D models, click on a part number.
| Collet Size | TIR (Total Indicated Runout) Accuracy | Workpiece Dia. Tolerance | Body Dia. | Overall Lg. | Internal Thread Size  | Material | Each | |
Round | ||||||||
|---|---|---|---|---|---|---|---|---|
| 3/8" | 0.0007" | -0.004" to 0" | 0.95" | 4.089" | 7/16"-20 | Steel | 0000000 | 000000 |
ER-32 Collets
Install into an ER-32 collet chuck or holder to tightly grip round-shank tool bits in milling machines.
Collets with coolant keep tools cool to extend tool life.
For technical drawings and 3-D models, click on a part number.
| Collet Size | Grip Range | Workpiece Dia. Tolerance | Max. Body Dia. | Approximate Dia. Compression | Overall Lg. | Material | Features | Max. Coolant Pressure, psi | Specifications Met | Each | |
Round | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/8" | 0.344"-0.375" | -0.0001" to 0.0001" | 1.3" | 1/32" | 1.57" | Hardened Steel | __ | __ | DIN 6499, ISO 15488B | 0000000 | 000000 |
| 3/8" | 0.359"-0.375" | -0.0001" to 0.0001" | 1.3" | 1/32" | 1.57" | Hardened Steel | Coolant | 1,000 | DIN 6499, ISO 15488B | 00000000 | 00000 |
5C Collets
These collets tightly grip workpieces when installed into a 5C collet chuck or holder. They provide a stronger hold on small workpieces than a standard lathe chuck.
For technical drawings and 3-D models, click on a part number.
| Collet Size | TIR (Total Indicated Runout) Accuracy | Workpiece Dia. Tolerance | Body Dia. | Overall Lg. | Internal Thread Size | External Thread Size | Material | Each | |
Round | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3/8" | 0.0008" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 000000 |
Hexagonal | |||||||||
| 3/8" | 0.0025" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
Square | |||||||||
| 3/8" | 0.0025" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
ER-16 Collets
Install into an ER-16 collet chuck or holder to tightly grip round-shank tool bits in milling machines.
For technical drawings and 3-D models, click on a part number.
| Collet Size | Grip Range | Workpiece Dia. Tolerance | Max. Body Dia. | Approximate Dia. Compression | Overall Lg. | Material | Each | |
Round | ||||||||
|---|---|---|---|---|---|---|---|---|
| 3/8" | 0.344"-0.375" | -0.0001" to 0.0001" | 0.677" | 1/32" | 1.06" | Hardened Steel | 00000000 | 000000 |
ER-20 Collets
Install into an ER-20 collet chuck or holder to tightly grip round-shank tool bits in milling machines. To ensure they work with milling machines and tooling made throughout the world, these collets meet both ISO and DIN dimensional standards.
Collets with coolant keep tools cool to extend tool life.
For technical drawings and 3-D models, click on a part number.
| Collet Size | Grip Range | Workpiece Dia. Tolerance | Max. Body Dia. | Approximate Dia. Compression | Overall Lg. | Material | Features | Max. Coolant Pressure, psi | Specifications Met | Each | |
Round | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/8" | 0.344"-0.375" | -0.0001" to 0.0001" | 0.83" | 1/32" | 1.22" | Hardened Steel | __ | __ | DIN 6499, ISO 15488B | 0000000 | 000000 |
| 3/8" | 0.359"-0.375" | -0.0001" to 0.0001" | 0.83" | 1/32" | 1.22" | Hardened Steel | Coolant | 1,000 | DIN 6499, ISO 15488B | 0000000 | 00000 |
ER-25 Collets
Use these collets in milling machines that have an ER-25 collet chuck. With a round face and adjustable body, they compress to grip round-shank drill bits, end mills, reamers, and taps.
To ensure they work with milling machines and tooling made throughout the world, these collets meet both ISO and DIN dimensional standards.
| Collet Size | Grip Range | Workpiece Dia. Tolerance | Max. Body Dia. | Approximate Dia. Compression | Overall Lg. | Material | Specifications Met | Each | |
Round | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3/8" | 0.344"-0.375" | -0.0001" to 0.0001" | 1.03" | 1/32" | 1.38" | Hardened Steel | DIN 6499, ISO 15488B | 0000000 | 000000 |
16C Collets
Insert into a 16C collet chuck or holder to tightly grip round workpieces. They provide a stronger hold on small workpieces than a standard lathe chuck. These collets have both external and internal threads.
For technical drawings and 3-D models, click on a part number.
| Collet Size | TIR (Total Indicated Runout) Accuracy | Workpiece Dia. Tolerance | Body Dia. | Overall Lg. | Internal Thread Size | External Thread Size | External Thread Pitch | Material | Each | |
Round | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 3/8" | 0.0008" | -0.004" to 0" | 1.89" | 4.31" | 1 11/16"-20 | M47.5 | 1.75mm | Steel | 00000000 | 000000 |
100-TG Collets
Install into a 100-TG collet chuck or holder to tightly grip round-shank tool bits in milling machines.
For technical drawings and 3-D models, click on a part number.
| Collet Size | Workpiece Dia. Tolerance | Max. Body Dia. | Approximate Dia. Compression | Overall Lg. | Material | Each | |
Round | |||||||
|---|---|---|---|---|---|---|---|
| 3/8" | -0.0003" to 0.0003" | 1.278" | 1/64" | 2.386" | Hardened Steel | 00000000 | 000000 |
3J Collets
When installed into a 3J collet chuck or holder, these collets securely grip round workpieces. They provide a stronger hold on small workpieces than a standard lathe chuck. All have external threads.
For technical drawings and 3-D models, click on a part number.
| Collet Size | TIR (Total Indicated Runout) Accuracy | Workpiece Dia. Tolerance | Body Dia. | Overall Lg. | External Thread Size | Material | Each | |
Round | ||||||||
|---|---|---|---|---|---|---|---|---|
| 3/8" | 0.0008" | -0.004" to 0" | 2" | 3 3/4" | 1.988"-20 | Steel | 00000000 | 000000 |