All critical surfaces are hardened and precision ground
Gage depth is 1.97"
Nose diameter is 1.18". Drawbar thread is M16 X 2.00
Description
BT-40 5/16" End Mill Holder ~ for CNC machines with BT taper spindles. ~ Concentricity is .0002". ~ All critical surfaces are hardened and precision ground. ~ Gage depth is 1.97". ~ Nose diameter is 1.18". ~ Drawbar thread is M16 X 2.00.