Toglon, Hard Long Drill Bit 20D ALT Coating

[Features]
· Realizes through-holes of 20D or more in quenched steel.
· H7 or greater accuracy is possible due to the extremely high circularity and cylindricity and excellent surface roughness.
· Can also machine mold ejector pin holes, etc., in one go without a pilot hole.
· Reduced processes can help to shorten lead time.