Precision Twist Drill 6000157 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 6000157 is a taper length drill bit designed for general-purpose drilling across a wide range of materials. Manufactured from high speed steel with a bright/uncoated finish, it measures 0.0935 inches in diameter and 4.25 inches in overall length. The 118-degree standard point angle and web-thinned, tapered web configuration reduce entry force and improve centering accuracy. The straight shank and right-hand spiral flute make it compatible with standard drill chucks used by machinists, pipefitters, and maintenance technicians working in shop or field environments.

This drill bit is suited for use in metal fabrication, mechanical maintenance, and industrial applications where a longer flute length is needed to reach deeper into a workpiece. The 2.25-inch flute length at a 6xD ratio provides extended reach compared to jobber-length bits. It is appropriate for use in bench drill presses, hand drills, and milling machine setups. Materials supported include alloy steel, aluminum, brass, bronze, carbon steel, cast iron, copper, stainless steel, nickel alloys, magnesium alloys, malleable iron, and reinforced plastics.

Key Features

• High speed steel construction for durability across ferrous and non-ferrous materials
• 118-degree standard point angle for general-purpose entry on a broad range of stock
• Web-thinned tapered web reduces thrust and improves chip evacuation
• Taper length body with 2.25-inch flute provides extended reach beyond standard jobber bits
• Bright/uncoated finish suitable for use with cutting fluid or dry
• Meets ANSI standards for dimensional consistency

Compatibility

Designed as a general-purpose taper length drill bit in the Series R52 line, compatible with standard straight-shank drill chucks accepting a 0.0935-inch shank diameter.

Installation Notes

This bit is installed and operated by machinists, maintenance mechanics, or trade professionals using standard drill press or hand drill equipment. Secure the shank firmly in the chuck before operation and verify spindle speed is appropriate for the workpiece material and bit diameter. Use cutting fluid when drilling ferrous metals to extend tool life and improve hole finish. Inspect the cutting edges before each use and replace the bit if chipping or dulling is observed.