Accupro 63310312 Jobber Drill Bit 5/32 Solid Carbide Altin

Product Description

The ACCUPRO 63310312 is a jobber-length drill bit designed for precision hole-making in hard and abrasive materials. Ground from solid carbide and finished with an AlTiN (aluminum titanium nitride) coating, it handles elevated cutting temperatures better than standard HSS tooling. The 140-degree notched point reduces thrust and self-centers on entry, minimizing walk on flat and curved surfaces. At 2.5 inches overall length with a 0.879-inch flute length, it fits standard drill chucks and CNC machining centers. This bit is suited for machinists, tool-and-die technicians, and metalworking professionals who need consistent, repeatable results in hardened or abrasive workpiece materials.

This drill bit is sized at 5/32 inch (0.1562 inch decimal) with a 3/16-inch straight-cylindrical shank. It is used in ferrous and non-ferrous metalworking applications, including production machining, maintenance and repair operations, and fabrication shops. The regular spiral flute and web-thinned, parallel-web configuration promote chip evacuation and reduce cutting resistance. Maximum recommended drilling depth is 0.700 inch. Coolant-through capability is not supported on this bit, so external coolant or cutting fluid application is the standard practice when drilling deep features or hard alloys.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• AlTiN coating improves heat resistance and extends tool life at higher cutting speeds
• 140-degree notched point for reduced thrust and improved self-centering
• Web-thinned parallel web reduces cutting force and aids chip clearance
• Right-hand spiral flute with regular helix promotes consistent chip evacuation
• Straight-cylindrical 3/16-inch shank fits standard drill chucks and collets

Compatibility

Designed as a high-performance OEM-style jobber drill bit for use in manual drill presses, CNC machining centers, and hand-held power tools equipped with a chuck that accepts a 3/16-inch straight shank.

Installation Notes

Installation and use should be performed by a qualified machinist or metalworking technician familiar with proper feeds, speeds, and workholding practices. Secure the workpiece firmly before drilling to prevent movement and tool breakage. Carbide tooling is brittle and should not be subjected to interrupted cuts or side loading beyond what the tool geometry is rated for. Apply cutting fluid externally when drilling deep features or hard alloys to manage heat at the cutting edge.