RUKO TOOLS Flat-Bottom HSS Step Drill Bit 30-40 mm, 3-Flats Shank

This RUKO TOOLS step drill bit is used for drilling stepped holes in sheet metal, plastics, and thin materials. Its flat-bottom HSS design creates clean, burr-free holes from 30 mm to 40 mm. Common applications include electrical enclosures, automotive panels, and HVAC ductwork.

The RUKO TOOLS step drill bit (MPN 101363) has a 30 mm to 40 mm drilling range, is made of high-speed steel (HSS), and features a 3-flats shank for secure chuck grip. It is not impact rated. The flat-bottom design produces countersunk holes without separate tools.

You can order the RUKO TOOLS step drill bit 101363 from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we source and deliver this item globally.

For metal drilling, choose a HSS step drill bit like RUKO TOOLS 101363 for materials up to 2 mm thick. Ensure the shank fits your drill chuck (3-flats design). Use cutting oil to reduce heat. This bit is not impact rated, so avoid hammer drills. Match the step range to your hole size needs.