- Square Head
- Center Head
- Nonreversible Protractor Head
- Reversible Lock Bolts
- Spirit Level in Square and Protractor Head
- Direct Reading Double 180 Degree Protractor Scale
- 8th, 16th, 32nd, and 64th Graduations
The combination set is complete with a square head, center head, and non-reversible protractor head with a 12" hardened steel, machine-divided blade. Features reversible lock bolts, scriber, spirit level in both square head and protractor head and a direct reading double 180 degree protractor scale. The heads are cast iron with a black wrinkle finish.