01H004 - Walter 1/16 Sst Stub Drill

Heavy-Duty Stub Drill for Professional Welders

Welders and metal fabricators know that preparation is half the battle, and the Walter 01H004 1/16" SST Stub Drill is the ultimate preparation tool for tough jobs. When working with stainless steel or mild steel, standard drill bits often fail under pressure, snapping or dulling prematurely. This Walter SST drill is built differently. Its stub length design offers maximum core strength, making it highly resistant to the lateral forces that cause longer bits to snap. This makes it the perfect choice for drilling out spot welds, creating pilot holes for fasteners, or working on heavy-duty repairs where tool failure is not an option.

No-Slip Starting on Sheet Metal

One of the most frustrating aspects of drilling sheet metal is keeping the bit on target. The Walter 01H004 solves this with its precision-ground 135-degree split point. Unlike standard 118-degree points that rely on a chisel edge, this split point cuts from the center out, ensuring instant penetration. This feature is particularly beneficial for welders working in awkward positions or on curved surfaces, such as pipes or tubing, where applying heavy feed pressure is difficult. The bit stays exactly where you place it, ensuring accurate hole placement every time without the need for a center punch.

Long-Lasting Performance

Time is money in the welding shop, and changing out dull bits slows you down. The Walter 01H004 is treated with a unique bronze SST coating that enhances its hardness and lubricity. This treatment helps the bit maintain its cutting edge even when drilling through work-hardened stainless steel. The result is a cleaner cut, faster drilling speeds, and a significantly longer tool life compared to standard black oxide bits. Whether you are using a hand drill or a stationary press, this stub drill delivers consistent, burr-free results, allowing you to move on to the welding or assembly stage faster and with greater confidence.