Precision Twist Drill 5999716 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5999716 is a taper length, straight-shank drill bit designed for general-purpose drilling across a wide range of materials. Built from high speed steel (HSS) with a bright/uncoated finish, it features a 118-degree standard point angle and a right-hand spiral flute. The bit measures 0.1660 inches in diameter (Wire Size 19) with a flute length of 3.375 inches and an overall length of 5.75 inches. The web-thinned, tapered web configuration reduces thrust at the cutting point and supports cleaner entry. This bit is suited for machinists, maintenance technicians, and fabricators working with hand-held drills or drill presses.

This drill bit is appropriate for use in machine shops, fabrication facilities, and general industrial maintenance settings. Its taper length body provides added reach compared to jobber-length bits, making it useful for accessing deeper holes or working in recessed areas. The Series R52 designation identifies it as part of a standardized line manufactured to ANSI tolerances. It is sold individually and is suitable for both production drilling and maintenance repair operations.

Key Features

• High speed steel construction for durability across ferrous and non-ferrous materials
• 118-degree standard point angle for general-purpose drilling
• Right-hand spiral flute with 6xD flute-to-diameter ratio for efficient chip evacuation
• Web-thinned tapered web reduces cutting resistance and entry thrust
• Bright/uncoated finish maintains dimensional accuracy without coating buildup
• Straight shank compatible with standard drill chucks; no threaded shank

Compatibility

Designed as a general-purpose taper length drill bit compatible with standard drill chucks accepting a 0.1660-inch straight shank. Suitable for use in hand-held drills, drill presses, and CNC drilling operations where a straight-shank taper length bit is specified.

Installation Notes

Secure the straight shank fully in the drill chuck before operation and verify chuck tightness to prevent slippage. Power down and de-energize any machine tool before changing bits. Use appropriate cutting fluid or coolant based on the material being drilled, particularly with stainless steel or hardened alloys, even though this bit does not support coolant-through delivery. Follow applicable ANSI B94 standards and shop safety protocols when operating drill equipment.