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Walter SST+ Cobalt Jobber Drill Bit - Size #4

$11.38/ea $99.80/10 per each only $9.98/eaSave 12%

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OVERVIEW

Drill More Holes in Less Time with Walter SST+

For welders and fabricators who are tired of burning through cheap drill bits when working with stainless steel, the Walter #4 SST+ Jobber Drill (01B504) is the ultimate solution. We know that in a busy shop, time is money, and stopping to swap out dull or broken bits is a major productivity killer. That is why Walter designed the SST+ line with a heavy-duty cobalt blend that stands up to the heat and stress of drilling through mild steel, non-ferrous metals, and tough stainless steel alloys. This is the bit you reach for when you need the job done right the first time.

One of the most frustrating parts of drilling metal is getting the hole started exactly where you want it. Standard bits often skate across the surface, scratching your metal and ruining your layout lines. The Walter SST+ features a self-centering Speed Tip that bites into the metal immediately upon contact. You can say goodbye to the extra step of using a center punch. This feature is a game-changer when you are drilling into tubing, pipe, or curved automotive parts, giving you total control from the very first revolution.

The performance of this bit goes beyond just the material it is made of. The unique flute design is engineered to pull chips out of the hole faster than standard bits. This keeps the cutting edge cooler and prevents the bit from jamming or snapping off inside the hole—a nightmare scenario for any welder. The bronze surface treatment acts as a lubricant layer, helping the bit glide through the metal with less resistance. This means less strain on your drill motor and less fatigue for your arm during long days of fabrication.

Whether you are drilling out broken bolts, fabricating custom brackets, or installing hardware, the Walter #4 SST+ Jobber Drill offers the versatility and durability you need. It is built to handle the torque of powerful hand drills and the rigidity of drill presses alike. Upgrade your toolbox with a drill bit that works as hard as you do and experience the difference that premium engineering makes in your daily fabrication tasks.

Additional Information
Brand:Walter Surface Technologies
Used To Cut:Steel, Stainless Steel & Aluminum
Packaging Description:1 per each
Drill Size:#4
Decimal Equivalent:0.2090"
Material:Cobalt Blend High-Speed Steel (HSS)
Point Angle:135° Split Point
Flute Design:High Flow
Coating:Bronze SST
Shank Type:Round

INCLUDED

  • 1x Walter #4 SST+ Jobber Drill Bit

APPLICATIONS

  • Drilling stainless steel and hard alloys
  • General fabrication with mild steel
  • Automotive repairs and maintenance
  • Drilling on curved surfaces or pipes
  • Installation of fasteners and hardware
  • Industrial MRO applications

FAQ

The #4 wire gauge drill bit has a decimal equivalent diameter of 0.2090 inches (approximately 5.31 mm).

Yes, the Walter SST+ is made from a cobalt blend specifically designed to drill through tough materials like stainless steel effectively.

The Speed Tip is a self-centering 135° split point that prevents the bit from walking or skating on the surface, eliminating the need for a center punch.

While the bronze SST coating reduces friction, using a cutting lubricant like Walter Coolcut is always recommended to extend tool life, especially in stainless steel.

It is crafted from a premium cobalt blend High-Speed Steel (HSS), which offers superior heat resistance compared to standard black oxide bits.

Yes, the SST+ design includes a back tapered body to prevent binding, making it excellent for use in portable hand drills as well as drill presses.

The High Flow design optimizes the geometry of the flutes to evacuate chips more rapidly, reducing heat buildup and the risk of breakage.

The bit features a special bronze SST surface treatment that improves durability and helps chip flow.