The HSS step drill bit drills smooth and burr-free holes with different diameters. It is ideal for drilling and enlarging holes. It is not necessary to anchor, as the drill bit with cross-ground makes it easier to drill. The CNC-milled spiral groove removes the chip material optimally and enables even drilling. Axial and radial relief grinding enable the highest grinding performance and absolute smooth results. The step drill is suitable for thin material made of non-ferrous metal, stainless steel and plastic as well as steel sheet and plastic panels. The step drill is made of HSS steel and is extremely durable when coolant is used. The well-recognizable and durable diameter marks in both spiral grooves are lasered. The 3-surface shaft also prevents slipping in the chuck and enables the transmission of high torques. Design: HSS, step diameter (range) mm: 4-12, step height mm: 4, shaft diameter mm: 6.0, total length mm: 66.5
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