Countersink: 5/16" Head Dia, 100 &deg MPN:336-004080

The Countersink featuring a 5/16 head diameter, 100 degrees tip angle, and fit to be used with a standard 3/8 HSK or 1/2 D shank toolholder delivers the performance needed to efficiently create professional looking holes in mild steel up to 1/4 thick, making it ideal for fabricators working on automotive, machinery building industries as well as general metalwork projects. This product's ability to countersink or back chamfer material helps prevent burr formation thus enhancing safety while easing assembly process by providing strong initial threads ensuring uniform depth & taper, improving overall thread reliability, making it a practical solution for those seeking optimal production efficiencies along with impeccable results. With superior carbide tipped cutting edges designed for durability & longevity, the Countersink stands out among competitors as a cost-effective and time saving option backed by consistent, predictable performance needed in the most demanding industrial environments where nothing less than optimal quality is accepted, leaving behind professional looking threads with minimal effort required.