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- ER16 M Wrench is made from high quality alloy steel
- Thick material allows high torque without bending
- 5 point contact ensures no distortion of collet nut while tightening
- Head outside dia is .875 Inches X .437 thick
- Inside diameter of head is .465 Inches
- total length is 4.72 Inches
- Works on all of our M Type collet chucks that take ER16 collets
- MariTool Part# is ER16M-WRENCH