The 4.5mm Irwin Turbomax HSS Drill Bit measures 4.5 x 80mm, offering an intermediate size that bridges the gap between standard 4mm and 5mm applications. This diameter is particularly useful for specific engineering tolerances, larger fixings, and applications where a precise 4.5mm hole is required. Designed for portable and cordless drills, this bit is primarily engineered for drilling metal and sheet metal, though it performs exceedingly well in all types of wood and plastics. The 80mm overall
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