
Welders and fabricators know that drilling through stainless steel can be one of the most frustrating tasks in the shop. Standard bits often overheat, dull instantly, or wander across the surface, ruining the finish. The Walter 01D570 7.00mm SST+ Drill Bit is designed to solve these exact problems. Infused with a robust cobalt blend, this bit is built to withstand the intense heat and stress of drilling through hard metals. It bites into the material immediately, thanks to its aggressive self-centering point, eliminating the need for a center punch and preventing the dreaded "walking" that scratches your workpiece. This makes it perfect for fit-up work on pipes, tubes, and curved surfaces where precision is non-negotiable.
Durability is key when you are out on a job site, and the Walter SST+ series delivers. The 7.00mm bit features a heavy-duty construction that resists breaking under torque, giving you the confidence to lean into the cut. The special bronze surface treatment helps the bit glide through metal, reducing the physical effort required and extending the life of your portable drill's battery. Furthermore, the innovative high-flow flute design ejects metal chips quickly, keeping the cutting edge cool. This is essential for preventing the bit from annealing and losing its temper, ensuring that one bit lasts for many holes.
While it excels in stainless steel, the 01D570 is a versatile workhorse capable of drilling mild steel, aluminum, and non-ferrous metals with equal ease. The back-tapered body design prevents binding, which is especially helpful when drilling gummy materials like aluminum that tend to grab the bit. Whether you are installing brackets, fabricating custom frames, or performing maintenance repairs, this drill bit provides the reliability you need. Stop wasting money on cheap bits that burn out after a few uses. Upgrade to the Walter SST+ and experience the difference that professional-grade tooling makes in your welding and fabrication projects.
| Additional Information |
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| Brand:Walter Surface Technologies |
| Diameter:7.00 mm |
| Product Type:Drill Bit |
| Series:SST+ |
| Material:Cobalt Blend High-Speed Steel (HSS) |
| Surface Treatment:Bronze SST |
| Flute Design:High Flow |
| Application Material:Stainless Steel, Mild Steel, Aluminum, Non-ferrous Metal |
| Body Design:Back Tapered |
| Packaging Description:10 per each |