
When you are fabricating with stainless steel or working on intricate sheet metal projects, a broken drill bit can ruin your day and your workpiece. The Walter SST+ #28 Cobalt Stub Drill Bit is built to handle the abuse that standard bits can't. Known in the industry as a "stub" or "screw machine" drill, its shorter profile provides exceptional strength and stability. This means you can apply the pressure needed to cut through hardened alloys without worrying about the bit flexing or snapping off in the hole.
This #28 drill bit is specifically formulated with a high-performance cobalt blend, making it the ideal companion for welders working with stainless steel, mild steel, and non-ferrous metals. The heat resistance of cobalt prevents the tip from burning up, ensuring you get more holes per bit and less downtime changing out dull tools. The unique bronze surface treatment further enhances performance by reducing friction, allowing the bit to cut freely and eject chips efficiently.
Perfect for drilling out spot welds or creating pilot holes for fasteners, the Walter SST+ features a 135-degree split point. This aggressive tip geometry centers itself instantly, preventing the dreaded "skating" that scratches pristine metal surfaces. For automotive repair, HVAC fabrication, or general metalworking, the Walter 01J028 offers the reliability and precision professional welders demand. Stop wasting money on cheap bits that break; upgrade to the rigidity and performance of Walter SST+.
| Additional Information |
|---|
| Brand:Walter Surface Technologies |
| Item:Drill Bit |
| Packaging Description:10 per pack |
| Used To Cut:Steel, Stainless Steel & Aluminum |
| Drill Size:#28 |
| Material:Cobalt Blend |
| Point Angle:135° Split Point |
| Flute Type:Stub Length |
| Coating:Bronze SST |