Precision Twist Drill 6000917 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 6000917 is a taper length drill bit designed for general-purpose drilling across a wide range of materials. Built from high speed steel with a bright/uncoated finish, it features a 0.1220-inch diameter, a 118-degree standard point angle, and a web-thinned, tapered web configuration that reduces thrust and improves centering. The straight shank measures 0.1220 inches in diameter, and the overall length comes in at 4-3/16 inches. The spiral flute with a 6xD flute-to-diameter ratio provides efficient chip evacuation during through-hole and deep-drilling operations. This bit is suited for use by machinists, maintenance technicians, and trade professionals working on metal fabrication or field repair tasks.

The 6000917 is built to DIN 340 specification, making it compatible with standard drill chucks and collet systems used in drill presses, hand drills, and CNC drilling setups. Its taper length design — longer than jobber length but shorter than extra-long series bits — makes it the right choice when a standard jobber bit lacks the reach needed to complete a through-hole in thicker stock. The right-hand, spiral-flute geometry performs across alloy steel, aluminum, brass, bronze, carbon steel, cast iron, copper, stainless steel, magnesium, nickel alloys, reinforced plastics, and similar workpiece materials.

Key Features

• 0.1220-inch diameter with a 118-degree standard point angle for general-purpose entry
• High speed steel construction for durability across ferrous and non-ferrous materials
• Web-thinned, tapered web reduces drilling thrust and improves bit centering
• Taper length series (4-3/16 inches overall) provides added reach over standard jobber bits
• Bright/uncoated finish — no coating interference for applications requiring tight dimensional tolerance
• Conforms to DIN 340 specification for consistent geometry and interchangeability

Compatibility

Designed as a DIN 340 taper length drill bit with a straight shank, this bit fits standard 3-jaw drill chucks and collet holders that accept a 0.1220-inch straight shank. Suitable for use in drill presses, hand drills, and compatible CNC drilling equipment.

Installation Notes

Secure the straight shank firmly in the chuck before operation and verify concentricity to avoid bit deflection on entry. Use appropriate cutting fluid or lubricant when drilling stainless steel, cast iron, or hardened alloys to extend tool life. When drilling deep holes, periodically retract the bit to clear chips and prevent flute packing. Always wear appropriate eye protection and follow applicable shop safety standards when operating drilling equipment.