Precision Twist Drill 5997907 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5997907 is a taper length drill bit designed for high-performance metal cutting across a wide range of materials. Built from high speed steel (HSS) with a bright uncoated finish, this bit features a 135-degree split point that self-centers on contact, reducing the need for a center punch. The parabolic flute geometry promotes efficient chip evacuation, especially in deep-hole applications. With a flute-to-diameter ratio of 6xD and a tapered web configuration, the 5997907 is suited for demanding production drilling where standard-length bits lack the reach.

This taper length drill bit is intended for professional machinists, tool-and-die tradespeople, and fabricators working in shop, industrial, and manufacturing environments. It is well suited for drilling into alloy steel, carbon steel, stainless steel, cast iron, aluminum, brass, bronze, copper, titanium, magnesium, and hardened or tempered steel. The straight shank and 0.1969-inch diameter make it compatible with standard drill chucks across a variety of drill press and handheld power tool setups. It conforms to DIN 340 standards for taper length drill geometry.

Key Features

• 135-degree split point for self-centering entry without a center punch
• Parabolic flute design for fast, efficient chip removal in deep holes
• High speed steel construction rated for heavy-duty drilling performance
• Tapered web with web thinning reduces thrust and cutting resistance
• Bright uncoated finish suitable for use with cutting fluids
• Conforms to DIN 340 taper length specification

Compatibility

Designed as an OEM-style taper length replacement or production drill bit for use in standard straight-shank drill chucks; compatible material applications include alloy steel, aluminum, aluminum alloy, brass, bronze, carbon steel, cast iron, copper, graphite, hardened steel, magnesium, magnesium alloy, malleable iron, nickel, stainless steel, steel, tempered steel, titanium, and titanium alloy per manufacturer specifications.

Installation Notes

Installation is performed by machinists or qualified tradespeople using a drill press, milling machine, or handheld power drill with a compatible chuck. Secure the straight shank fully in the chuck before operation and confirm the shank is locked to prevent slippage. Apply appropriate cutting fluid for the material being drilled to extend bit life and improve hole finish. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is visible.