Precision Twist Drill 5996582 Jobber Drill 10.50mm Hss

Product Description

The PRECISION TWIST DRILL 5996582 is a high-speed steel jobber-length drill bit designed for general-purpose drilling in metal fabrication and maintenance applications. Ground to a 135-degree split point with web thinning, it starts on contact without a center punch and resists walking on flat or curved surfaces. The bright, uncoated finish suits a wide range of materials. At 10.50 mm (0.4134 inches) in diameter with an overall length of 5.2344 inches and a flute length of 3.4219 inches, the bit delivers an 8xD flute-to-diameter ratio that keeps chips moving on deeper passes. Licensed HVAC techs, plumbers, electricians, and general tradespeople reaching for a reliable metal-cutting drill will find this a dependable daily-use tool.

This bit is intended for drilling steel, aluminum, and non-ferrous metals in residential and light commercial trade work. The straight cylindrical shank seats securely in standard three-jaw drill chucks. The regular spiral flute design handles general drilling tasks where specialized coatings or parabolic flutes are not required. It is a solid choice for any trade professional drilling pilot holes, anchor holes, or clearance holes through structural steel, aluminum channel, copper, or brass fittings.

Key Features

• 10.50 mm (0.4134 inches) diameter with straight cylindrical shank of equal diameter for positive chuck retention
• 135-degree standard point with web thinning reduces thrust force and eliminates pilot-hole requirements on most metals
• High-speed steel construction maintains cutting edge integrity through repeated use in steel and non-ferrous stock
• Bright, uncoated finish compatible with cutting fluids and lubricants without adhesion issues
• Regular spiral, 2-flute design clears chips efficiently on through-holes and moderately deep passes up to 3.4252 inches
• Meets DIN 338 specification for consistent geometry and dimensional accuracy

Compatibility

Designed as a general-purpose jobber drill bit in the QC21PM series, rated for steel, aluminum, and non-ferrous workpiece materials per material codes P, M, K, N, and S. Fits any standard drill chuck accepting a 10.50 mm straight shank.

Installation Notes

A licensed tradesperson or qualified operator should secure the shank fully in a properly rated drill chuck before operation. Always apply an appropriate cutting fluid when drilling ferrous metals to extend tool life and improve finish quality. Use appropriate personal protective equipment including eye protection and gloves when operating. Follow applicable OSHA and site safety requirements for rotating tool use.