mortisegauge
nounUK /ˈmɔːtɪs ɡeɪdʒ/
US /ˈmɔːrtɪs ɡeɪdʒ/
A tool that helps a woodworker draw lines where a hole should be cut.
He used a mortise gauge to mark the slot for the wooden joint.
OTHER MEANINGS
2. A gauge with two adjustable pins for marking parallel lines on wood.
The mortise gauge's twin pins marked both sides of the joint at once.
3. A measuring device used to set the width of a mortise before cutting.
Set the mortise gauge to the chisel's width before you start.
4. Any marking tool that scribes lines for joinery work.
Old carpenters often carried a mortise gauge in their tool roll.