Woodworking Gap Gauge. This tool can be quickly gauging either the thickness of the material or inside dimension of a joint, the opposite end of the Gap Gauge is perfectly set to the required size for the other half of the joint. Easy to use and operate, the tool comes with a wide application range.

High quality & Precision scale: This gap gauge is made of high quality aluminum alloy.
Precision Pocket Ruler Woodworking by Clear Style
Both inside and outside diameters can be. This tool can be quickly gauging either the thickness of the material or inside dimension of a joint, the opposite end of the Gap Gauge is perfectly set to the required size for the other half of the joint. This tool can be quickly gauging either the thickness of the material or inside dimension of a joint , the opposite end of the Gap Gauge is perfectly set to the required size for the other half of the joint.