Bluefire® Type 27 Depressed Center Wheel, 4-1/2 in x 1/4 x 7/8, 24 Grit, Zirconia Alumina ORS NASCO Use fully chucked on smooth

Use fully chucked on smooth or threaded blind holes

Closed coat aluminum oxide with a vulcanized fiber backing for maximum performance

such as SF 7113|Cures within 2 minutes on plated metal and plastics fasteners with full strength in 24 hours|Used for tamper proofing the heads of screws or potentiometers

Bit is constructed of high speed steel for the best combination of strength

Bluefire® Type 27 Depressed Center Wheel, 4-1/2 in x 1/4 x 7/8, 24 Grit, Zirconia Alumina ORS NASCO Use fully chucked on smoothA blend of R&D advanced chemistry and shaped zirconia alumina abrasive and premium aluminum oxide grain Up to 20 percent increase in performance and life over our former zirconia alumina wheels Excellent performance to price ratio for lower total grinding costs. Specifications Abrasive Material Zirconia Alumina Abrasive Trade Name BlueFire Anchor Brand Catalog NO Applicable Materials Steel; Most Metals Arbor Diam [Nom] 7 8 in Big Catalog NO Brand