3-12mm 4-12mm 4-20mm Hole Step Drill Bit 3Pcs Black

Features: *Made from high quality HSS steel. *Heat treated and highly polished. *With the Nitrogen Coated to reduce friction and heat. *Perfect for home DIY and general building / engineering use. *Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic,copper, fibreglass and PVC etc. *3 sided shanks design in order to prevent slippage when in chuck. *Two flute design provides faster, smoother and cleaner cuts. *Each step is clearly labeled with the depth diameter in steps

Specifications: Material:HSS Steel Color: Black Finish: Nitrogen Coated *Length: 3-12mm Length: Approx.5.2cm/ 2.04inch 4-12mm Length: Approx. 4cm/ 1.57inch 4-20mm Length: Approx.4.7cm/1.85inch The 3 Cutters Come in the Following Sizes: 4-12mm: 4, 6, 8, 10, 12mm 4-20mm: 4, 6, 8, 10, 12, 14, 16, 18, 20mm 3-12mm: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12mm Quantily:3PCS

Package Contents: 3*Step Drill Bit 1*storage box

Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.