15/32 x 6 Multi-Purpose Drill-Bit

For rotary and percussion drilling. Chrome vanadium steel shaft and shank provides extra hardness and enormous strength. Special negative back grinding enables tip to bore through steel, wood, tile, marble, porcelain, glass, concrete, plastic and cast iron with a filing action rather than a cutting action. No center punch required, eliminates walking. Cobalt and Tungsten carbide tip for max hardness and resistance to heat and wear. High tech bonding allows bit to withstand drilling temperatures up to 1,900 degrees Fahrenheit. Easy to resharpen. For cordless drills, corded drills and drill presses. NOTE: Not recommended for use on mild steel. This includes aluminum, angle iron, copper, galvanized pipe, brass and stainless steel. *COBALT & TUNGSTEN *CARBIDE TIP - MULTI-PURPOSE *3/8" REDUCED SHANK * Carded *Dia. x Lgth. Ins. =15/32 x 6