
Fabricators and welders know that drilling through sheet metal and stainless steel requires a bit that won't snap under pressure. The Walter 21/64" SST Stub Drill (01H021) is designed exactly for these challenges. Its "stub" length profile makes it incredibly sturdy, minimizing the flex that leads to breakage in standard length bits. This makes it an essential tool for automotive body work, HVAC installation, and general metal fabrication where drilling into thin-walled materials is a daily task.
Time is money in the shop, and the SST Stub Drill saves both. The advanced 135° split point tip allows you to drill directly into your workpiece without wasting time grabbing a center punch. It penetrates quickly and cleanly, leaving minimal burrs that would otherwise require secondary finishing. This self-centering action is perfect for drilling out spot welds or creating rivet holes in sheet metal panels.
Durability is key when working with stainless steel. The Walter SST series utilizes a special bronze surface treatment that resists heat buildup—the number one killer of drill bits. This ensures that your cutting edge stays sharp longer, allowing you to drill more holes per bit. Compact enough to fit into tight spaces inside machinery or vehicle frames, this 21/64" drill bit is a versatile problem-solver for any professional welder's toolbox.
| Additional Information |
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| Brand:Walter Surface Technologies |
| Diameter:21/64" |
| Used To Cut:Steel, Stainless Steel & Aluminum |
| Point Angle:135° Split Point |
| Drill Style:Stub Length (Screw Machine) |
| Surface Treatment:Bronze SST |
| Flute Design:Short Flute |
| Shank Type:Round |
| Packaging Description:10 per each |