Online Shop Scroll our online shop below for our large range of great quality fixings and fasteners. Step Drills Store/Metal Cutting Tools/Step DrillsRefine by FiltersClear allFiltersClear allShow itemsShow itemsHSS Step Drill Set Titanium Nitrade Coated (3 piece kit) 1@ 4-12mm / 1@ 4-20mm / 1@ 4-32mmHSS Step Drill Set Titanium Nitrade Coated (3 piece kit) 1@ 4-12mm / 1@ 4-20mm / 1@ 4-32mm£22.00