Designed specifically to cut spot welds from boron steel Made of tungsten carbide, this 8.0mm, special multi-layer coated, 3 fluted drill bit is the only drill bit tough enough to survive the ultra hard boron steel .
Dent Fix Equipment DF-1667 Boron Killer Drill Bit - 6.7x80mm
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Dent Fix Equipment Boron Killer DF-1667 Spot Weld Drill Bit
Dent Fix DF-1690 Boron Steel Spot Weld Drill Bit For Uhss, Ahss And Boron Steels
