3/16 to 7/8 Inch Step Drill Bit, M2 HSS Spiral Grooved Step Bit for Stainless Steel

• Cuts a lot more clean holes and much eaiser than average step bits. In general, M2 has 50% more Tungsten and 150% more Molybdenum, both of which are key elements in improving durability. Our additional Vacuum heat treatment and Nitride surface hardening treatment make the performance even better.
• Our Polished Steps and Size Highlights let you able to see target hole size during drilling. No need to stop in the middle of the drilling and check. Save you time and hassle.
• With our high-accuracy CNC processing and optimized spiral design over the years, our spiral flutes design cuts EASY, FAST and CLEAN, outperforming the average ones on the market. Compared to the Straight flutes, the Spiral flutes guide the debris out faster by its nature, making the drilling smoother and creating fewer burrs for the holes. Once you've tried our spiral design, there's no way back to the straight design.
• Cuts holes on Stainless steel, Hardened Metal, Mild steel, Galvanized steel, Aluminum, Copper, Plastic, Wood, or anything that has similar or lower hardness as these materials. Up to 12ga /2.7mm thickness for Stainless steel.
• This one step bit comes with 12 sizes so you can drill 12 different hole sizes, saving you time and effort to change bits. Marked sizes include: 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8".

1.Packaging Details: Plastic Box, Blister Card, Wooden Box, Metal Box for Step Drill Bit
2. TNT/FedEx/DHL/UPS for samples or under 45KG weight goods , Door to Door.
3. By Air or by Sea for batch goods,from airport(seaport) to airport(seaport).
4. Customers specifying freight forwarders or not.
5. Production Time: 3- 7days for samples; 2-3.5 weeks for batch goods.