Single Carbide Spot Weld Drill Bit


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The OTC 2489-8 Carbide Drill Bit was designed to drill through the hardest spot welds - even those containing boron. When you have body work that needs to get done, save yourself time with this super solution to drilling out spot welds. Constructed with multiple alloys including cobalt and high carbon - this bit is both strong and sharp. Double coated treatment ensures a sharp edge that resists dulling. 3-point bit design attacks the toughest spot welds without wandering. Cutting edges are sharp and specially treated to resist dulling. Similar to machine shop tooling, the OTC 2489-8 is not your typical drill bit!



  • 8mm x 50mm
  • 3-point design to aggressively drill the hardest spot welds without walking
  • Manufactured to meet High Speed Tool Steel specifications
  • Multiple elements alloyed with high carbon content produce hard, wear resistant carbides
  • Product Dimensions: 2.1 × 0.4 × 0.4 in
  • Product Weight: 0.1 lb