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01H029 - Walter 29/64 Inch SST Heavy-Duty Stub Drill Bit

Packaging: 5 per each
$36.92/ea

Package Price:

$184.60/5 per each

Usually ships within 3-5 business days

SKU: 01H029 Categories: ,

OVERVIEW

High-Performance Drilling for Industrial Applications

The Walter 01H029 29/64" SST Stub Drill is a premium cutting tool engineered for the rigorous demands of industrial metalworking. Designed with a focus on rigidity and precision, this drill bit belongs to the SST family, known for its ability to tackle tough materials where standard jobber bits often fail. The defining characteristic of this tool is its "stub" or screw machine length. By reducing the overall length and flute length, the bit achieves significantly higher torsional strength. This rigidity is crucial when drilling into hard alloys like stainless steel or when using portable drilling equipment where stability can be compromised.

One of the standout features of the 01H029 is its 135° split point geometry. Unlike standard 118° points, this aggressive angle allows the drill to self-center immediately upon contact with the workpiece. This eliminates the time-consuming step of center punching and prevents the bit from "walking" or skating across the surface, which is particularly beneficial when working with sheet metal or curved surfaces. The split point design also reduces the thrust load required to penetrate the material, reducing operator fatigue and wear on the machine.

The bit is treated with Walter's exclusive bronze SST surface treatment. This specialized coating serves multiple purposes: it increases surface hardness, reduces the coefficient of friction, and facilitates better chip evacuation. By minimizing heat generation—the primary enemy of cutting tools—the SST treatment extends the life of the bit and maintains cutting efficiency over a longer period. Whether used in a stationary drill press or a handheld power tool, the Walter 29/64" SST Stub Drill delivers consistent, burr-free holes in mild steel, non-ferrous metals, and stainless steel.

Technical Specifications

  • Diameter: 29/64 inch
  • Point Angle: 135° Split Point
  • Design: Stub / Screw Machine Length
  • Surface: Bronze SST Treatment
Additional Information
Packaging Description:5 per each
Brand:Walter
Diameter (in):29/64"
Point Angle:135° Split Point
Drill Style:Stub Length
Application Material:Aluminum, Mild Steel, Stainless Steel
Coating:Bronze SST
Flute Type:Standard Spiral
Shank Type:Round

INCLUDED

  • 1 x Walter 29/64" SST Stub Drill Bit

APPLICATIONS

  • Drilling stainless steel assemblies and parts
  • Sheet metal fabrication and bodywork
  • Drilling rivets and spot welds
  • General fabrication in mild steel and aluminum
  • Confined space drilling with portable drills
  • Automotive and heavy equipment repair

FAQ

Stub drills are shorter than standard jobber bits, which makes them much more rigid. This rigidity prevents flexing and significantly reduces the chance of breakage, especially when drilling hard metals or using hand drills.

Yes, the Walter SST Stub Drill is specifically designed with a heavy-duty web and bronze surface treatment to effectively drill through tough materials like stainless steel.

No, the 135° split point geometry is self-centering, meaning it will start cutting immediately without walking, eliminating the need for a center punch in most applications.

The decimal equivalent of 29/64 inches is approximately 0.4531 inches.

The bronze color comes from a special SST surface treatment that improves heat resistance and lubricity, helping the bit last longer.

Yes, the short length and non-walking tip make it excellent for drilling out spot welds or rivets where precision and rigidity are required.

Yes, a 29/64" bit has a shank diameter smaller than 1/2", so it will fit into any standard 1/2" chuck.

Yes, it works well on non-ferrous metals like aluminum, though it is built tough enough for steel and stainless.

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