Walter SST+ 3/8-Inch x 6-Inch Cobalt Extension Drill Bit

The Drill Bit That Reaches Where Others Can't

Every welder knows the frustration of needing to drill a hole in a tight spot, only to find the drill chuck hitting the workpiece before the bit breaks through. The Walter 3/8" SST+ 6'' Extension Drill Bit (SKU: 01F524) is the solution to that headache. With a 6-inch total length, this bit gives you the extra reach you need to get into deep channels, through thick plate assemblies, or around obstructions without compromising on power or precision.

But reach isn't the only thing this bit offers; it is built to eat through the toughest metals in your shop. If you work with stainless steel, you know how quickly it can chew up standard black oxide bits. This Walter SST+ bit features a cobalt blend that resists the intense heat generated when drilling stainless, keeping the edge sharp longer. You won't have to stop halfway through a hole to sharpen your bit or throw it in the trash. It is designed to withstand the abuse of heavy-duty fabrication environments.

The 135-degree split point is a game-changer for accuracy. When you are drilling on a curved pipe or a piece of angle iron, you don't want your bit skating across the surface and ruining the finish. This bit bites instantly on contact, self-centering so you can drill exactly where you marked. The bronze surface treatment helps clear chips out of the hole quickly, preventing binding and overheating. Whether you are drilling out broken bolts or fabricating custom brackets, this extension bit is a must-have for your toolbox.