Precision Twist Drill 5996026 Cobalt Drill Bit No. 10

Product Description

The PRECISION TWIST DRILL 5996026 is a screw machine length cobalt drill bit in No. 10 wire size (0.1935 inches decimal). Built to ANSI standards in the M41CO series, this heavy-duty bit features a 135-degree split point and web-thinned, tapered web construction that reduces thrust and enables faster, more accurate entry into hard materials. The short screw machine length overall length of 2.25 inches provides added rigidity over jobber-length bits, making it well suited for high-cycle production drilling environments. It is installed by machinists, tool-and-die professionals, and maintenance technicians working with harder workpiece materials.

This bit is designed for drilling hard materials in production and maintenance applications where rigidity and hole accuracy are priorities. The 1.1875-inch flute length and 2.5xD flute-to-diameter ratio make it appropriate for use in drill presses, CNC machining centers, turret lathes, and hand-held power drills where short, stiff tooling is specified. The straight cylindrical shank seats directly in standard drill chucks without adapters. Right-hand cut spiral flutes clear chips efficiently in ferrous and other hard workpiece materials.

Key Features

• No. 10 wire size, 0.1935 inches decimal diameter, for precise hole sizing in hard materials
• 135-degree split point reduces walking and lowers required thrust at entry
• Web-thinned, tapered web improves penetration and chip clearance
• M41CO cobalt high-speed steel construction for heat resistance and extended tool life in hard materials
• Screw machine length overall length of 2.25 inches delivers greater rigidity than jobber-length equivalents
• ANSI-standard straight cylindrical shank, 0.1935 inches diameter, fits standard drill chucks

Compatibility

Designed as a direct-fit screw machine length drill bit for use in drill presses, CNC equipment, turret lathes, and standard drill chucks accepting a 0.1935-inch straight cylindrical shank.

Installation Notes

This bit is installed by machinists and maintenance technicians in conventional or CNC drilling equipment. Ensure the machine spindle is fully powered down and locked out before changing tooling. Secure the straight cylindrical shank firmly in the chuck or collet to the full grip depth to prevent slippage under load. Cobalt tooling is optimized for hard and abrasive materials; use appropriate cutting fluid or coolant where the application and equipment allow.