Johnson 400 12" Professional Metal Combination Square
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- Stainless steel blade with permanently stamped graduations 1/8", 1/16", 1/32"
- Heavy-duty cast zinc head with black, chip-resistant e-coating finish
- CNC machined square head for greater accuracy
- Reversible head with lock bolt and steel screw
- Hardened, screw-in scriber won't fall out