Length: 4-12mm length: Approx. 6. 3cm/ 2. 48inch 4-20mm length: Approx. 7. 3cm/ 2. 87inch 4-32mm length: Approx. 10cm/ 3. 94inch Specification Step drill cutting specification: 4-12mm Hole Sizes in 2mm Steps (5 steps) 4-20mm Hole Sizes in 2mm Steps (9 steps) 4-32mm Hole Sizes in 2mm Steps (15 steps) Surftreatment: Titanium Plating Model # DLP-147741 Features:. Automatically Deburrs Holes as you Drill. Two-flute Design Gives You Faster, Smoother Cutting. Titanium Nitride Coating for Cooler Running, can effectively extend the service life of the drill bi Made of HHS 6542/M2 steel , could work with stainless steel , wood , plastic. Long life !
