10PC CBB Replacement Cutter Bits for HC1 & HC2 Sheet Metal Hole Cutters,Handle Lateral Stress TIN Coating M2 Steel HSS,HRC 63-64,Fit Malco Hole Cutter Accessories,Sheet Metal Hole Cutter Bits

Made from M2 steel with TIN coating, these bits resist lateral shear forces and maintain sharpness longer. Each bit features a mill-type cutting edge and adjustable flat, allowing precise adjustments to maximize cutter life. Perfect for HVAC, electrical, and general metal fabrication, these sheet metal hole cutter replacement bits are durable, reliable, and cost-effective for both professionals and DIY users.

• PERFECT FIT FOR MALCO HC1 & HC2:Specially engineered as the ultimate replacement cutter bits for your Malcoct upgrade for your Malco HC1 (2"-12") and HC2 (2"-20") sheet metal hole cutters.The precision-ground flat side ensures a wobble-free lock in the pivot pin, delivering accurate,circular cuts every time.
• TOUGH M2 STEEL:Don't let brittle M35 cobalt bits ruin your workflow. Our bits are forged from Premium M2 High-Speed Steel, heat-treated to a balanced HRC 63-64. This provides the critical toughness and flexibility needed to handle lateral stress and shocks without snapping like glass.
• TITANIUM COATED FOR SMOOTH CUTS: Finished with a professional Gold Titanium (TiN) coating that reduces friction and prevents "zinc galling" when cutting 20-gauge galvanized steel. This heat-resistant layer keeps the malco bit sharper for longer, delivering cleaner edges with less effort.
• SHOCK-ABSORBING & EXTENDED LIFE: Designed for the real-world rigors of HVAC ductwork. The M2 steel absorbs vibrations from hand drills that cause other bits to shatter. With the adjustable mill-type edge, you can utilize the full length of the bit, effectively doubling the lifespan
• RELIABLE PERFORMANCE:Heavy-duty solution for HVAC, automotive, and roofing. These bits deliver a practical balance of fast cutting and long-term durability for consistent jobsite performance.