Starrett 50082 Combination Square Blade 6 in 16R

Product Description

The STARRETT 50082 is a 6-inch replacement blade for combination squares, graduated to the 16R specification. It carries four graduation scales: 1/100, 1/64, 1/50, and 1/32 inch, giving technicians and tradespeople a precise layout reference in a single blade. The blade is machined from steel with a satin chrome finish that reduces glare and resists corrosion during everyday shop and field use. At 0.75 inches wide and 0.08 inches thick, the blade fits standard combination square heads designed for that profile. The finished weight is 0.063 pounds. This part is sold individually.

The STARRETT 50082 is suited for layout, scribing, and measurement tasks across mechanical, HVAC fabrication, plumbing rough-in, and electrical work where square and depth references are needed. It serves as a direct replacement blade when an existing combination square head is serviceable but the original blade is worn, damaged, or lost. Trades that regularly mark sheet metal, conduit, or pipe will find the four-scale graduation useful for a range of layout increments without switching tools.

Key Features

• 16R graduation with four scales: 1/100, 1/64, 1/50, and 1/32 inch
• Steel construction for rigidity and long service life
• Satin chrome finish reduces glare and provides corrosion resistance
• 0.75-inch blade width fits standard combination square heads
• 0.08-inch blade thickness for consistent fit in compatible heads
• Sold individually — direct replacement without purchasing a full square set

Compatibility

Designed as a replacement blade for combination square heads that accept a 0.75-inch wide, 0.08-inch thick blade with 16R graduation. Verify head slot dimensions before installation.

Installation Notes

Blade replacement in a combination square head is a hand-tool task requiring no power tools. Loosen the locking nut or clamp screw on the head, slide the worn blade out, and seat the new blade fully before retightening. Ensure the blade is flush and square to the head face before returning the tool to service. No power shutoff is required, but work on a clean, stable surface to avoid damaging the graduation markings during installation.