Specification: Brand new Material: high speed steel Color: as picture shows Total Size: approx. 35 x 75mm Shank: approx. 23 x 13mm Type: 5-35mm(5,7,10,12,15,17,20,22,25,27,30,32,35mm) Surface: nitrogen treatment (increasing the hardness and abrasion resistance) Shank: triangle round handle Scop: thin iron plate, aluminum, insulation panels, PVC panels 4mm thickness within the timber No need for a pilot hole Titanium coated to reduce friction and run cooler Automatically deburr holes as you drill High speed steel,durable Widely used to cut holes in a variety of material like steel, wood, thin iron, aluminum alloy, insulation boards, PVC sheet, etc Package included: 1pc x 5-35mm spiral grooved drill Note: Please allow 0.5-1cm errors due to manual measurement Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same