Serial Number: P9807

Overview

A hollow chisel mortiser operates like a drill press, but cuts square holes.  It uses special bits that have a rotary interior and a square chisel exterior.  It has an integrated fence and a hold-down that make it easy to cut a line of square holes, to form a mortise.

• There are a few different sized bits for different width mortises
• You adjust the fence to adjust the position of the mortise
• You adjust the stop to set the depth of the mortise
• You adjust the hold-down clamp so the wood can move side-to-side but not up-and-down

Here is a video about how it is used:

Changing Bits

This video covers how to change bits:

Maintenance

This video has details about how to change bits and how to maintain the hollow chisel mortiser.