Pair of double squares
- Includes 4" & 6"
- Machined cast-iron have a smooth movement
- 4R rules have a satin-chrome finish that reduces glare and rust proof
- Comes with convenient case
- Squareness: 0.0015"
- Blade graduation: 8th, 16th, 32nd, 64ths
- Scale accuracy: 0.001"
