Valor V487755 | 0.312" (5/16) Cutter Diameter x 0.312" (5/16) Shank x 1.000" (1) Flute Length 4 Flute Uncoated Flat Bottom Counterbore

Swifty spot face or counterbore irregular surfaces and complex parts with this offering of 4 flute flat bottom counterbores and achieve excellent performance when flat bottom reaming or straightening misaligned holes.

Features:

• Outstanding for flat bottom reaming or straightening misaligned holes
• Flat bottom design (no dish) allows for spot facing or counterboring on irregular surfaces commonly found on rounded or complex parts
• Ground with full cylindrical margin (not side cutting)
• Center cutting
• 15 Degree helix
• Uncoated option well-suited for aluminum alloys and other non-ferrous alloys
• Proprietary Val-Max X coating for improved tool life and heat resistance in ferrous materials, including alloy steels, stainless steels, nickel alloys, and other high hardness materials up to 65 Rc
• Solid carbide
• Precision manufactured in the USA