This 7.5mm Irwin HSS TCT drill bit provides excellent drilling capability at a useful intermediate diameter for hardened materials. The 7.5mm size is particularly valuable for specific clearance requirements and applications where standard 7mm or 8mm sizes don't provide the exact fit needed. The C2 tungsten carbide tip is specifically engineered to drill through hardened steel, cast iron, bronze alloys, and manganese alloyed steel, handling materials up to 50 Rockwell C hardness with precision.
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