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Product Name:Straight Flute HSS Step Drill Bit
Step drills provide the ability to drill multiple size holes without changing the bit.Saves on tooling costs and downtime;
Designed for industrial applications.Make good quality holes in variety of material;
Each step produces accurate, parallel holes with a small clearance on the nominal diameter;
The maximum material thickness is determined by the length of the step (if the workpiece can be reversed multiply thickness by 2).