“Power Coat” ER Collet Nuts


“Power Coat” is an innovative, permanent coating that increases clamping pressure of the nut up to 75% compared to standard ER nuts. More holding power reduces the chance of spinning the shank of the tool inside the collet, which can cause
premature failure of the collet.

"Power Coat" Nut Features

  • Increase holding power up to 75%

  • Reduce T.I.R., extend tool life up to 20%

  • Hold tools more securely for better shop safety

  • Coolant style available

* Recommended torque is 80-90% of maximum value.
* Torque Wrenches available!

“Power Coat” ER Collet Nuts

Part No. Description D B Wrench M Max Torque*
41111 ER 11 Coated Nut 11B-Hex 19mm 12mm 4608 M14 x 0.75 20 ft/lbs.
41116 ER 16 Coated Nut 16B-Hex 27.5mm 18mm 4609 M22 x 1.5 50 ft/lbs.
41120 ER 20 Coated Nut 20B-Hex 34mm 19mm 4610 M25 x 1.5 75 ft/lbs.
41916 ER 16 Coated Nut 16B-Slot 32mm 18mm 4613 M22 x 1.5 50 ft/lbs.
41920 ER 20 Coated Nut 20B-Slot 35mm 19.5mm 4614 M25 x 1.5 75 ft/lbs.
41925 ER 25 Coated Nut 25B-Slot 42mm 21mm 4615 M32 x 1.5 95 ft/lbs.
41932 ER 32 Coated Nut 32B-Slot 50mm 23mm 4616 M40 x 1.5 125 ft/lbs.
41940 ER 40 Coated Nut 40B-Slot 63mm 26mm 4617 M50 x 1.5 140 ft/lbs.
41950 ER 50 Coated Nut 50B-Slot 78mm 35mm 4618 M64 x 2.0 160 ft/lbs.