Precision Twist Drill 010324 Hss Cobalt Jobber Drill 3/8 in

Product Description

The PRECISION TWIST DRILL 010324 is a high-speed steel cobalt jobber drill designed for heavy-duty drilling in hard and abrasive materials. Built with a straight shank and Type J jobber geometry, this drill delivers consistent performance in demanding trade applications. The 3/8 inch tip diameter and 4 inch depth of cut make it suited for structural, fabrication, and maintenance work where standard HSS tooling falls short. Overall length is 5 inches. Weighing 0.75 pounds, it is a solid, purpose-built tool for machinists, pipefitters, ironworkers, and maintenance mechanics working with hard ferrous metals and alloys.

This cobalt jobber drill is used in applications where elevated heat resistance and edge retention are critical. Typical use cases include drilling into stainless steel, hardened steel, cast iron, and other tough ferrous materials encountered in industrial fabrication shops, mechanical rooms, and field service environments. The Type J jobber length configuration makes it compatible with standard drill chucks on bench drills, magnetic drills, and hand-held power drills used across multiple trades.

Key Features

• HSS cobalt construction for superior heat resistance and durability in hard materials
• Type J jobber geometry with straight shank for broad chuck compatibility
• 3/8 inch diameter tip for common structural and mechanical drilling tasks
• 4 inch depth of cut suitable for through-drilling in typical stock thicknesses
• 5 inch overall length fits standard drill chucks without adapters
• Heavy-duty designation for use where standard HSS drills wear prematurely

Compatibility

Designed as a straight-shank jobber drill compatible with standard 3/8 inch and larger keyed or keyless drill chucks on bench, magnetic, and handheld power drills.

Installation Notes

Installation of drill bits should be performed by qualified tradespeople following safe tooling practices. Ensure the drill chuck is fully tightened and the workpiece is securely clamped before operation. Use appropriate cutting fluid when drilling hard ferrous metals to extend tool life and maintain bit geometry. Inspect the cutting edge for wear or chipping before each use and replace if the edge is degraded.

Technical Specifications

• Diameter: 3/8 inches
• Depth of Cut: 4 inches
• Overall Length: 5 inches
• Shank Type: Straight
• Drill Type: Type J Jobber
• Material: HSS Cobalt
• Weight: 0.75 pounds

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 010324