25/64" Cobalt Steel Drill Bits | Jobber | Length | 6-Pack Size:0.3906 (25/64") For drywall (gypsum board) to

For drywall (gypsum board) to 20-12 gauge metal studs

Use Zinc-plated self-drilling screws for light to heavy gauge metal to metal fastening applications such as attaching strapping or furring channel to steel joists

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Nibs under the head help it to countersink into the board

Bullard’s Type 27 cutting wheels are manufactured for speedy

25/64" Cobalt Steel Drill Bits | Jobber | Length | 6-Pack Size:0.3906 (25/64") For drywall (gypsum board) toHeavy duty web construction designed to outperform and outlast. Manufactured from heat resistant premium Cobalt high speed steel. Cobalt drills can maintain their cutting ability at high temperatures and are extremely resistant. 135 split point design for more rugged and efficient drilling. Made from M42 Cobalt High Speed Steel for excellent wear resistance on high strength materials. For drilling in medium alloyed steel, stainless steel, hardened