The Foredom A-800 Series Primo® Cobalt Steel Twist Drills are premium-quality precision drill bits designed for jewelers, metalsmiths, model makers, and other professionals who require clean, accurate holes in a variety of materials. Manufactured from solid cobalt steel, these drills offer exceptional heat resistance and durability, lasting up to 15 times longer than conventional high-speed steel (HSS) drill bits under proper operating conditions. Featuring a 2.35mm (3/32") shank, these drills are compatible with most flex shaft handpieces, rotary tools, and pin vises that accept standard shank sizes. Available in a range of diameters, the A-800 Series provides the precision needed for drilling precious metals, brass, copper, aluminum, mild steel, wood, bone, and mother-of-pearl. Features & Benefits Premium solid cobalt steel construction for extended tool life Lasts up to 15 times longer than standard HSS drill bits Excellent heat resistance for demanding drilling applications Produces clean, precise holes with minimal wandering Standard 2.35mm (3/32") shank fits most flex shaft handpieces and rotary tools Ideal for jewelry making, metalsmithing, model making, and precision crafts Available in multiple drill diameters to suit a variety of applications Suitable for drilling precious metals, brass, copper, aluminum, mild steel, wood, bone, and mother-of-pearl Specifications Manufacturer: Foredom Series: A-800 Primo® Product Type: Cobalt Steel Twist Drill Material: Solid Cobalt Steel Shank Diameter: 2.35mm (3/32") Overall Length: 45mm (1.8") Available Sizes: Multiple diameters (sold individually) Maximum Recommended Speed: 30,000 RPM Applications: Precision drilling in jewelry, metals, wood, bone, and other craft materials Check Out The Foredom Tools Catalog Micro-Tools makes every attempt to provide accurate information for each item. Actual packaging and/or specifications may be slightly different from the information and picture provided. X
