This TCT countersink clamps onto any drill between 3.0mm and 7.2mm in diameter.
Recommended for wood and man-made boards
By reversing the countersink on the drill it can be used as a non-cutting depth stop.
Ensure flutes of drill are aligned with flutes of countersink.
Do not overtighten screw.
Not suitable for production applications and not suitable for ferrous and non-ferrous metals.

Specification:
C=12 mm
OL=32 mm
A=45 degrees