STEP step drill

• For burr-free drilling and reaming of sheet metal, pipes and sections and one-sided deburring in a single operation
• The exact bore diameter results from the cylindrical graduation, the ground section of each step deburrs the next smaller bore diameter
• Point thinning in accordance with DIN 1412 C
• Especially suitable for use on hand drills when drilling thin materials
• Corner breakers for double-sided deburring (up to 1.5 mm sheets)
• No need for pre-drilling or centre punching even with curved surfaces
• Straight shank with 3 driving planes prevents “slipping” in the chuck
• Laser scaling of bore diameters and rotational speed data
• Note: material thickness suitable up to 5 mm

Sets