Johnson 420EM-S 16" Heavy Duty Professional Inch/Metric Metal Combination Square
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- Auto-Lockâ„¢ blade assembly
- Stainless steel blade with permanently etched graduations 1/8", 1/16", 1/32", mm
- Heavy duty cast zinc head with black, chip-resistant e-coating finish
- Hardened, screw-in scriber won't fall out
- Durable acrylic level vial