Precision Twist Drill 010309 Hss Cobalt Jobber Drill 9/64 in

Product Description

The PRECISION TWIST DRILL 010309 is a heavy-duty HSS cobalt jobber drill designed for cutting through hard and abrasive materials. Built on a straight shank with a Type J jobber configuration, this drill delivers the toughness needed for demanding applications in metal fabrication, maintenance, and industrial settings. It features a 9/64 inch tip diameter and a 4 inch depth of cut, with an overall length of 2-7/8 inches. Licensed tradespeople and skilled machinists rely on cobalt-grade HSS tooling when standard high-speed steel bits fall short on hardened steels, stainless, and tough alloys.

This drill is suited for use in job shop, maintenance, and production environments where hard-surface materials require a more durable cutting edge than standard HSS. The 9/64 inch diameter makes it appropriate for pilot holes, through-holes, and clearance drilling in light structural and sheet metal work. It is sold individually and fits standard drill chucks compatible with straight shank tooling.

Key Features

• HSS cobalt construction for extended tool life in hard and abrasive materials
• Heavy-duty straight shank for secure chuck grip
• Type J jobber drill geometry for general-purpose through-hole drilling
• 9/64 inch tip diameter with 4 inch depth of cut
• Overall length of 2-7/8 inches for use in standard drill presses and hand drills

Compatibility

Designed as an OEM-style replacement or direct-use straight shank jobber drill compatible with standard drill chucks accepting a straight shank at 9/64 inch diameter.

Installation Notes

Installation and use should be performed by qualified machinists or tradespeople familiar with rotary cutting tools. Secure the straight shank fully in the drill chuck before operation and verify chuck key is removed before powering the drill. Use appropriate cutting fluid when drilling hard metals to manage heat and extend tool life. Follow applicable shop safety standards and wear eye protection at all times during use.

Technical Specifications

• Tip Diameter: 9/64 inches
• Depth of Cut: 4 inches
• Overall Length: 2-7/8 inches
• Shank Type: Straight
• Drill Type: Type J Jobber
• Material: HSS Cobalt
• Weight: 0.1 pounds
• UPC: 086071103093

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 010309