Shars R8 ER16 2.12" Collet Chuck Mill Tool Holder TIR .0002" New P}
Hex Type ER16 Collet Wrench Precision Magnetic Z Axis Zero Setter 2" Height x 0.001" 1/4" Tap ER16 Rigid Tap Collet. ER collet nut is nickel plated to improve rust resistance than black oxided finished collet nut.