Triumph Twist Drill 099822 Cobalt Drill Bit Set 29 Pc

Product Description

The TRIUMPH TWIST DRILL 099822 is a 29-piece cobalt jobber length drill bit set engineered for heavy-duty metalworking and multipurpose drilling applications. Each bit features a 135-degree split point that reduces walking and allows drilling to begin without a center punch. The bronze oxide finish helps resist heat and corrosion during high-speed operation. Bit sizes step in 1/64-inch increments from 1/16 inch up to 1/2 inch, covering the most common hole sizes in metal fabrication, maintenance, and mechanical service work. The set is stored in a metal case for organized jobsite access.

This set is suited for drilling into steel, stainless steel, cast iron, and other hard metals encountered in HVAC, plumbing, electrical, and general mechanical trades. The cobalt construction handles the heat generated when cutting through harder alloys where standard high-speed steel bits would dull prematurely. Straight shanks are compatible with standard 3-jaw drill chucks on corded drills, cordless drills, and drill presses. The jobber length geometry balances reach and rigidity for most through-hole and shallow-depth drilling tasks on structural members, enclosures, and equipment housings.

Key Features

• Cobalt tool material provides superior heat resistance for drilling hard metals
• 135-degree split point reduces bit walking and eliminates the need for center punching in most situations
• Bronze oxide coating helps extend bit life by reducing friction and heat buildup
• 29-piece set steps from 1/16 inch to 1/2 inch in 1/64-inch increments
• Straight shank fits standard 3-jaw drill chucks without adapters
• Metal storage case keeps bits indexed and protected between uses

Compatibility

Designed for use with standard 3-jaw drill chucks accepting straight-shank bits up to 1/2 inch. Suitable for metalworking and multipurpose drilling applications as indicated by the Series SAD13HD classification.

Installation Notes

Installation is performed by machinists, maintenance technicians, and trade professionals using handheld drills or drill presses. Ensure the drill is powered off and the chuck is fully tightened around the shank before operating. Use appropriate cutting fluid or lubricant when drilling hard alloys to extend bit life and maintain hole quality. Wear ANSI-rated eye protection when drilling metal, and secure workpieces firmly to prevent rotation.