ABRAPRO 12Pcs 1/8" Multipurpose Cutting Bits，M2 HSS for Rotary Tools 3.2mm Spiral Bits, Cut Out Bits Wood, Plastic, Fiberglass, Drywall and Laminates

Multipurpose Drill Bit：12pc 1/8" drill bits in blister card packaging, designed for plasterboard and drywall. Precision-cutting edge and optimized flute ensure clean, efficient cutting and hole-making, ideal for electricians, decorators, and construction professionals. Premium Material：Made of M2 high-speed steel with high hardness, wear resistance, and good toughness, offering 3X longer life. Sharp edge resists chipping for smooth, flat cutting and high efficiency. Resists bending/deformation, suits home and engineering scenarios. Application Scope: Ideal for softwood (≤12mm thick), plastic, fiberglass, plasterboard, laminates, thin aluminum sheets, vinyl wall panels. For junction boxes, recessed lighting fixtures, vents, wall decorations in home renovations, commercial construction, electrical installations. Machine Compatibility: Fit for dremel rotary tools that can accommodate a 1/8 inch (3.175 mm) shank size, making it compatible with most standard rotary tools and suitable for a wide range of grinding, sanding, and polishing applications. The maximum safe rotational speed is 35, 00ORPM. Recommended speeds: 10, 000-25, 000 RPM for plastics, drywall, and fiberglass; 20, 000-30, 000 RPM for softwood and plywood; 25, 000-35, 000RPM for hardwood, MDF, and thin aluminum/copper/brass.