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01J018 - Walter SST #18 Cobalt Stub Drill Bit for Stainless Steel

Packaging: 10 per each
$6.20/ea

Package Price:

$62.00/10 per each

Usually ships within 3-5 business days

SKU: 01J018 Categories: ,

OVERVIEW

Industrial Grade Rigidity for Sheet Metal Applications

The Walter 01J018 #18 SST Stub Drill is an industrial-grade cutting tool engineered to solve the common frustrations associated with drilling thin gauge metals and hard alloys. In professional manufacturing and MRO environments, standard jobber-length bits often flex and wander, leading to broken tools and oblong holes. This 'stub' or screw machine length drill bit eliminates that flex by shortening the flute and overall length, providing unparalleled rigidity during operation.

Manufactured from a high-performance cobalt blend, this bit is designed to withstand the high temperatures generated when drilling tough materials like stainless steel. The addition of cobalt significantly extends the cutting edge's lifespan compared to standard High-Speed Steel (HSS). Furthermore, Walter's proprietary bronze SST surface treatment reduces friction and aids in smooth chip evacuation, preventing heat buildup that can work-harden the material.

This drill bit features a self-centering split point geometry. This design allows the bit to bite into the material immediately upon contact, eliminating the need for a center punch and preventing the bit from 'walking' across the surface—a critical feature when working with polished sheet metal or rounded surfaces. Whether used in a stationary drill press or a portable hand drill, the Walter 01J018 delivers precise, round holes with minimal burr formation.

Key Technical Benefits

  • Maximum Durability: Short flute design resists breakage from lateral force.
  • Heat Resistance: Cobalt substrate maintains hardness at high drilling temperatures.
  • Precision Starting: Split point tip prevents skating on smooth surfaces.
Additional Information
Packaging Description:10 per each
Brand:Walter
Item:Drill Bit
Used to Cut:Steel or Stainless or Aluminum
Drill Size:#18
Material:Cobalt Blend
Style:Stub (Screw Machine Length)
Point Type:Split Point
Coating:Bronze SST

INCLUDED

  • 1 x Walter #18 SST Stub Drill Bit

APPLICATIONS

  • Drilling rivet holes in sheet metal
  • Fabrication with stainless steel and mild steel
  • Drilling on curved surfaces or pipes
  • Portable drilling applications where rigidity is key
  • Automotive body work and spot weld removal
  • Maintenance and repair operations (MRO)

FAQ

A stub drill (or screw machine drill) has a shorter flute and overall length than a standard jobber drill. This makes it much more rigid and less prone to breaking, especially when used in hand drills or on hard materials.

A #18 wire gauge drill bit has a diameter of approximately 0.1695 inches (4.305 mm).

Yes, the Walter SST Stub Drill is made from a cobalt blend specifically designed to cut through hard metals like stainless steel effectively.

While the bronze SST coating helps reduce friction, using a cutting fluid or lubricant (like Walter Coolcut) is always recommended when drilling stainless steel to extend the life of the bit.

A split point tip allows the drill to start cutting immediately upon contact with the material, preventing it from 'walking' or skating across the surface, which is common with standard points.

Yes, it can drill aluminum, but it is optimized for harder metals. For aluminum, ensure you clear chips frequently to prevent clogging.

In this context, SST refers to Walter's 'Super Speed Tip' or surface treatment technology that enhances durability and cutting speed.

Cobalt has a higher melting point and retains its hardness at higher temperatures, making it superior for drilling abrasive or hard materials that generate significant heat.

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