Value Collection 01198209 Cobalt Jobber Drill No. 20

Product Description

The VALUE COLLECTION 01198209 is a cobalt jobber-length drill bit in No. 20 wire size (0.1610 inches), designed for drilling into stainless steel, hardened materials, and other tough alloys that defeat standard high-speed steel tooling. It features a 135-degree split point that reduces walking and cutting pressure at startup, eliminating the need for a center punch in most applications. The straight shank and regular spiral flute geometry make it compatible with standard drill chucks. Overall length is 3.25 inches with a 2.125-inch flute length. Sold individually; minimum order quantity is 12 units.

This bit is suited for metalworking applications in maintenance, repair, and fabrication environments where stainless steel or hardened workpieces are common. Machinists, millwrights, pipefitters, and industrial maintenance technicians reach for cobalt-grade tooling when standard bits overheat or lose edge. The No. 20 wire size is frequently used for tapping preparation and precision hole work in light-gauge stainless sheet, structural components, and fittings.

Key Features

• Cobalt construction for heat resistance in stainless steel and hardened materials
• 135-degree split point reduces drill walk and lowers required feed pressure
• Right-hand cutting direction, regular spiral flute for efficient chip evacuation
• Bright/straw finish, uncoated for easy visual wear inspection
• Straight cylindrical shank fits standard keyed and keyless drill chucks
• Heavy-duty grade rating for demanding production or field use

Compatibility

Designed for use in standard drill presses, hand drills, and CNC drilling setups accepting a straight 0.1610-inch shank; primary workpiece materials listed by the manufacturer are stainless steel and hardened materials.

Installation Notes

Cobalt drill bits should be run at lower surface speeds than high-speed steel bits when drilling stainless steel to prevent work hardening at the cut. Use a cutting fluid or paste lubricant to extend tool life and improve hole finish. Secure the workpiece firmly before drilling and apply steady, consistent feed pressure. Inspect the cutting edges before each use; a dull cobalt bit on stainless steel will harden the material and accelerate tip failure.