This jig is simple, accurate and quick to use. No measuring or calculating is necessary. It is great for miter, butt, and edge joints. Also works well as a mortising guide. Offset holes are easy, just add a spacer block. Anodized aluminum body with hardened steel guides.
The jig handles material from 1/4" to 6" thick. Two extremely accurate guide holes are tapped for the supplied bushings to let you drill three sizes of holes on 3/4" center with one clamping. Includes two bushings each; 1/4", 5/16" and 3/8", plus two fixed holes measuring 7/16" and 1/2" .