This 3.5mm Irwin HSS Long Pro Drill Bit is perfectly sized for medium-duty drilling applications across a variety of materials. Ideal for mounting brackets, installing hardware and general metalworking tasks, this size is commonly used by electricians, plumbers and general tradespeople. Manufactured from high quality HSS steel with a bright finish, this drill bit features precision ground cutting edges that enable fast drilling whilst ensuring perfect finishing. The ground flute design maximises
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