Experience the difference that precision engineering makes with the Walter #23 SST Stub Drill Bit<\/strong>. Designed to tackle the most common frustrations associated with drilling metal\u2014such as bit breakage and walking\u2014this tool is a game-changer for maintenance professionals and fabricators alike. The “Stub” designation refers to its screw machine length; by shortening the overall length and the flutes, Walter has created a drill bit that is significantly more rigid than standard jobber bits. This increased stiffness allows you to apply the necessary pressure to cut through tough materials without the bit flexing or snapping, a common occurrence with smaller diameter bits.<\/p>\n The Walter 01J023 is crafted from a specialized cobalt blend<\/strong> material. Unlike standard high-speed steel (HSS), cobalt alloys possess superior heat resistance, known as “hot hardness.” This makes the SST Stub Drill particularly effective when drilling stainless steel, a material that tends to work-harden and generate immense heat during machining. The addition of a unique bronze SST surface treatment further enhances performance by reducing friction and facilitating smoother chip evacuation, keeping the cutting edge cooler for longer.<\/p>\n One of the standout features of this drill bit is its self-centering split point geometry. On slick surfaces like sheet metal or rounded pipes, standard bits often wander before they bite. The Walter SST point centers immediately, ensuring your hole is exactly where you marked it. Whether you are drilling out rivets, working on auto body panels, or fabricating stainless steel enclosures, this drill bit delivers speed, accuracy, and durability. It is the reliable choice for portable drilling applications where stability and longevity are paramount.<\/p>\n Key Benefits:<\/strong><\/p>\n\n