Precision Twist Drill 5995695 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5995695 is a cobalt taper length drill bit engineered for demanding metalworking applications. Built to the M52CO series specification, it carries a 135-degree split point that reduces walking and allows self-centering entry without a center punch. The straight cylindrical shank measures 0.1200 inches in diameter, and the bit runs a 2.75-inch flute length with a 6xD flute-to-diameter ratio. Gold oxide finish assists in heat identification and light lubricity during high-speed drilling. Machinists, maintenance technicians, and tool-room professionals turn to cobalt-grade bits when HSS alone is not enough for tough alloys.

This bit is rated for use in a broad range of materials including alloy steel, carbon steel, stainless steel, hardened steel, cast iron, malleable iron, brass, bronze, high-strength bronze, copper, aluminum, aluminum alloy, magnesium, magnesium alloy, nickel, nickel alloy, cermet, graphite, and reinforced plastic. The taper length body provides additional reach compared to a jobber-length bit, making it suitable for deeper hole applications on the mill, drill press, or hand drill where standard lengths fall short.

Key Features

• Cobalt tool material for heat resistance and extended tool life in tough alloys
• 135-degree split point with web thinning for self-centering entry and reduced thrust
• Gold oxide finish aids heat monitoring and provides light lubricity
• Taper length body at 5.125 inches OAL provides extended reach over jobber-length bits
• 6xD flute-to-diameter ratio supports chip evacuation in deeper holes
• ANSI-standard straight cylindrical shank fits standard drill chucks

Compatibility

Designed as a direct-fit replacement for standard straight-shank taper length drill bits in the No. 31 wire gauge size (0.1200 inches). Compatible with any drill press, CNC machine, or hand drill chuck accepting a straight cylindrical shank at the 0.1200-inch diameter.

Installation Notes

Install in a properly sized drill chuck and tighten with a chuck key before operation. Secure the workpiece with a vise or clamp — never hold by hand when drilling metal. Apply cutting fluid appropriate to the workpiece material to extend bit life and improve finish quality. Inspect the cutting edges and web for wear before each use; a worn split point increases thrust load and reduces hole accuracy.