RENYU 5Pcs Cobalt Spot Weld Drill Bit Set Kit, Titanium Coated High Speed Cobalt Steel Weld Cutter Drill Bit Weld Removal Tool 5 /16-inch (8mm) Black

Features

• ADVANCED M35 COBALT HSS WITH MULTI-LAYER COATING Our spot weld drill bit set is forged from professional-grade M35 high-speed steel (HSS) with 5% cobalt content. The upgraded industrial coating combines a TiAlN base layer plus an outer black aluminum nitride (AlNi) layer significantly boosting surface hardness, reducing friction heat, and extending bit life even when drilling repeatedly into high-strength automotive steel.
• VERSATILE FOR AUTO BODY & METAL REPAIR Works effectively on a wide range of materials including car body steel, aluminum panels, and other common metals. Ideal for collision repair, panel replacement, rust repair on floor pans, quarter panels, rocker panels, and general automotive sheet metal spot weld removal. One tool for professional mechanics and serious DIYers.
• PRECISE APPLICATION FOR MULTIPLE REPAIR SCENARIOS Engineered for Apillar solder joint removal, mechanical plate positioning drilling, general spot weld cutting, and automotive sheet metal weld removal. The sharp spur point and spring-loaded centering tip prevent bit walking, delivering clean cuts without burrs or damaging the second panel no need for secondary weld cleanup.
• FAST & EFFICIENT WITH PLATE PROTECTION Removes spot welds quickly without twisting or distorting metal plates. The unique flute design clears chips efficiently, reduces heat buildup, and saves you significant time and effort during car repair, frame straightening, or rust restoration projects.
• COMPLETE 5PIECE 5/16" KIT WITH ETCHED SIZES Includes 5 pieces of 5/16 inch (8mm) cobalt spot weld drill bits, Each bit features permanently etched size markings for easy identification, so you can grab the right bit instantly during your repair project.