Precision Twist Drill 040812 Hss Stub Drill 3/16 in

Product Description

The PRECISION TWIST DRILL 040812 is a high-speed steel (HSS) stub-length drill designed for applications that demand rigidity and accuracy. With a 3/16-inch tip diameter and a 2.5-inch depth of cut, this stub drill keeps deflection to a minimum even in tough materials. The shortened flute and overall body length create a stiffer tool compared to jobber-length drills, reducing chatter and improving hole quality. It is suited for use in production drilling, repair work, and any situation where a standard-length drill flexes too much or lacks clearance. Licensed tradespeople and experienced machinists are the primary users of this tool.

This stub-length HSS drill is appropriate for drilling metal, ferrous alloys, and similar materials in both shop and field settings. The compact 2-3/16-inch overall length makes it a practical choice when working in confined spaces or when using a drill press, hand drill, or CNC setup where a shorter tool is preferred. It is sold individually and is well suited to HVAC, plumbing, and electrical rough-in work where metal drilling is routine.

Key Features

• High-speed steel construction for durability in metal-drilling applications
• Stub length design reduces flex and increases drilling accuracy
• 3/16-inch tip diameter for common fastener and pilot-hole sizing
• 2.5-inch depth of cut accommodates typical through-drilling in sheet and structural metal
• Short flute length minimizes chatter and tool deflection
• Compact overall length suits restricted-access drilling locations

Compatibility

Designed as an OEM-style stub-length drill compatible with standard 3/8-inch or larger drill chucks in drill presses, hand drills, and CNC spindles accepting round-shank tooling.

Installation Notes

Secure the drill firmly in the chuck before use and verify the chuck key is fully removed prior to powering the drill. Use cutting fluid or a suitable lubricant when drilling hard metals to extend tool life and improve hole quality. Allow the drill to clear chips regularly, especially in deeper cuts, to prevent binding. Worn or damaged drills should be replaced rather than reused to maintain hole accuracy and prevent tool breakage.

Technical Specifications

• Drill Type: HSS Stub Length
• Tip Diameter: 3/16 inches
• Depth of Cut: 2.5 inches
• Overall Length: 2-3/16 inches
• Material: High-Speed Steel (HSS)
• Weight: 0.15 pounds
• UPC: 086071408129

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 040812