Precision Twist Drill 6000853 Jobber Drill Bit Hss

Product Description

The PRECISION TWIST DRILL 6000853 is an 8.50 mm (0.3346 inch) high speed steel jobber-length drill bit designed for general-purpose drilling in a wide range of materials. It features a standard 118-degree point angle with web thinning for easier penetration and reduced thrust. The bright, uncoated finish suits applications where coating is unnecessary or where re-sharpening is routine. With an overall length of 4.6063 inches and a 2-flute regular spiral configuration, this bit delivers efficient chip evacuation during through-hole and blind-hole drilling operations. Licensed tradespeople and machinists working in fabrication, HVAC rough-in, plumbing, and mechanical installations will find it a reliable general-purpose tool.

This jobber drill bit is suited for drilling aluminum, non-ferrous metals, and other workpiece materials classified under standard material groups P, M, K, N, and S per DIN 338 and ANSI standards. The straight cylindrical shank fits standard 3-jaw drill chucks without adaptation, making it compatible with handheld power drills, drill presses, and milling machine setups. The 9xD flute-to-diameter ratio provides adequate flute length for most standard jobber drilling depths encountered in field and shop conditions.

Key Features

• 8.50 mm (0.3346 inch) diameter with straight cylindrical shank of equal diameter
• 118-degree standard point angle with web thinning for reduced entry thrust
• High speed steel construction for general-purpose durability and re-sharpenability
• Bright, uncoated finish compatible with cutting fluids or dry operation
• 2-flute regular spiral geometry for consistent chip clearance
• Conforms to DIN 338 and ANSI specifications; Series 2A

Compatibility

Designed as a general-purpose jobber drill bit compatible with any standard drill chuck accepting a 0.3346-inch straight cylindrical shank, including handheld drills, drill presses, and CNC drilling setups used across HVAC, plumbing, electrical, and mechanical trade applications.

Installation Notes

Installation of this drill bit is performed by licensed tradespeople and machinists using standard 3-jaw chucks; ensure the shank is fully seated and the chuck is tightened securely before operation. Disconnect or de-energize the tool before changing bits. Follow applicable ANSI safety standards for drilling operations, including appropriate eye protection and workpiece clamping. Apply a suitable cutting fluid when drilling metals to extend bit life and improve hole quality.