DORMER A002 HSS Jobber Drill TiN 4.0mm

Professional-grade HSS jobber drill bit with titanium nitride coating for extended tool life and superior performance. The 4.0mm size is ideal for general-purpose drilling in steel, cast iron, and other metals. TiN coating reduces friction and heat generation, enabling faster drilling speeds and cleaner holes. Dormer precision engineering ensures consistent accuracy and reliability for workshop and industrial applications.