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Walter SST+ 1/4 Inch Cobalt Drill Bit for Stainless Steel

$10.36/ea $91.20/10 per each only $9.12/eaSave 12%

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OVERVIEW

The Ultimate Drill Bit for Stainless Steel Fabrication

Every welder knows the frustration of trying to drill a clean hole in stainless steel with a cheap bit. It walks, it smokes, and eventually, it snaps or burns out, work-hardening the material and making the job impossible. The Walter SST+ 1/4" Drill Bit is the solution to these shop headaches. Built with a heavy-duty cobalt blend, this bit is designed to eat through stainless steel, mild steel, and aluminum without losing its edge. It is the go-to choice for fabricators who need reliable tooling that works as hard as they do.

The 1/4-inch size is a staple in any welding shop, perfect for rivets, pilot holes, or clearance holes for 1/4-inch bolts. What makes the Walter SST+ different is the 135-degree split point. When you are working out of position or trying to drill into a piece of pipe, you don't always have a free hand for a center punch. This bit bites instantly on contact, preventing that annoying "walking" across the surface that scratches your workpiece. It allows you to drill accurately on round stock and curved surfaces with a hand drill, saving you time on prep work.

Heat is the number one killer of drill bits, especially when working with stainless. The Walter SST+ features a unique bronze surface treatment and a "High Flow" flute design. These features work together to pull heat and chips out of the hole faster than standard bits. This means you can drill more holes per bit, saving money on consumables in the long run. The solid body construction resists snapping, even when you have to apply a bit of extra pressure to get through a tough spot.

Stop wasting time sharpening dull bits or running to the supply cabinet every five minutes. Equip your shop with Walter SST+ bits and experience the difference that premium geometry and materials make. Whether you are fabricating custom railings, repairing heavy machinery, or doing general automotive work, this 1/4" bit will become the most reliable tool in your drill index.

Additional Information
Brand:Walter Surface Technologies
Diameter:1/4 in
Used To Cut:Steel, Stainless Steel & Aluminum
Packaging Description:1-per-each
Material:Cobalt Blend High-Speed Steel (HSS)
Point Angle:135° Split Point
Surface Treatment:Bronze SST
Flute Design:High Flow
Shank Type:Round

INCLUDED

  • 1x Walter SST+ 1/4" Cobalt Drill Bit

APPLICATIONS

  • Drilling stainless steel sheets and plates
  • Fabrication of mild steel structures
  • Non-ferrous metal drilling (aluminum, copper, brass)
  • Portable drilling applications on job sites
  • Drilling round surfaces like pipes and tubing
  • Stationary drill press operations
  • Maintenance and repair operations (MRO)

FAQ

The Walter SST+ is designed for a wide range of materials including stainless steel, mild steel, and non-ferrous metals like aluminum. Its cobalt blend makes it particularly effective on hard metals.

No, the 135° split point geometry allows the bit to self-center immediately upon contact, eliminating the need for center punching even on round surfaces.

The bronze SST treatment reduces friction between the bit and the workpiece, which lowers heat buildup and extends the life of the cutting edge.

Yes, the Walter SST+ is excellent for portable drilling applications. Its split point prevents walking, making it easier to control with a hand drill.

It features a "High Flow" flute design which is engineered to evacuate chips more efficiently, preventing clogging and heat accumulation.

Cobalt is added to the high-speed steel to increase the bit's heat resistance and hardness, allowing it to cut through tough materials like stainless steel without dulling quickly.

Yes, like most high-quality HSS/Cobalt bits, it can be resharpened, though maintaining the specific split-point geometry requires precise sharpening equipment.

The internal SKU for the Walter 1/4" SST+ drill bit is 01A516.