RENYU 5pcs Cobalt Spot Weld Drill Bit Set, 5/16-inch, Titanium Coated
13 sold in last 24 hours
- 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 A‐pillar 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 5‐PIECE 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.
Estimated shipping
Select a product to estimate shipping.The RENYU 5-Piece Cobalt Spot Weld Drill Bit Set is a professional-grade tool designed for precise removal of spot welds from automotive and metal repair projects. These bits offer durability and performance, making them a valuable addition to any mechanic’s toolkit or serious DIY enthusiast’s collection.
Key Highlights
- Enhanced Durability: Crafted from M35 high-speed steel with 5% cobalt, these bits are built to withstand repeated use and high-strength materials.
- Reduced Friction: The multi-layer coating (TiAlN base + AlNi outer) minimizes friction and heat buildup, extending bit life and improving drilling efficiency.
- Versatile Material Removal: Effectively removes spot welds from car body steel, aluminum, and other common metals.
- Precise Joint Removal: Specifically engineered for removing A-pillar solder joints and other complex weld applications.
Useful Facts
- Brand: RENYU
- Set Name: 5-Piece Set
- Bit Diameter: 8 millimeters (5/16 inch)
- Material: Cobalt Steel
- Coating: Black Oxide Finish
Good Fit For
- Automotive collision repair technicians
- DIY automotive enthusiasts
- Metal fabrication and repair projects
- Panel replacement and rust repair
Product details
| Main Specification | |
|---|---|
| Fabricante | RENYU |
| Número de unidades | 5 Contagem |
| Recomendação de superfície | Metal |
| Cutting Diameter | 8 Millimeters |
| Shank Type | Straight |
| Tool Flute Type | Spiral |
| Marca | RENYU |
| Número de Peças | 5 |
| Product information | |
| Definir o Nome | 5-Piece Set |
| Technical Details | |
| Número da parte | RY0012 |
| Tipo de Material | Cobalt Steel |
| Number of Flutes | 2 |
| Style | |
| Tipos de Acabamento | Black Oxide |
| Others | |
| Realce do Item | Preto or High speed cobalt steel or weld cutter drill bit or weld removal tool |
| Tipo de produto | Spot Welding Equipment |