The jig is clamped onto a door to cut a mortise for the fitment of a door lock.
A drill is attached to the jig with the following requirements:
- The chuck needs to be removed to expose the 20UNF thread.
- The drill will be clamped on the collar (ø46mm).
- The drill will be part of the jig and will thus be a semi-permanent addition.
The cutting length and depth of cut can be adjusted to comply with the demands of various door lock sizes. The standard cutter supplied with the jig is a Ø17mm.
We recommend using a drill with low speed torque. For example a rotary drill without percussion having 20 UNF thread.