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Westward step drill bit, 13-hole, black oxide finish

Westward

Westward 6EXN3 Pneumatic Accessory 13 Hole 3.4 mm

SKU CH-YAQJ-09102 MPN 6EXN3

A 13-hole step drill bit in high-speed steel with an oxide finish, drilling to 3.4 mm depth

  • Product typeDrill Accessories
  • Main materialHigh Speed Steel w/Oxide Coated Finish
  • 13 hole sizes cover a wide drilling range
  • High-speed steel with oxide finish resists wear
  • Straight shank with three flats prevents slipping
  • 4 mm maximum drilling depth for precision
  • California Proposition 65 warning applies to this product

Purpose & Audience

The Westward 6EXN3 is a step drill bit designed for creating holes in a range of sizes from 1/8 in to 1/2 in. It suits technicians and hobbyists who need a single bit for multiple diameters in sheet metal or plastic. Buyers requiring holes larger than 1/2 in or specialised materials should look elsewhere.

Build & Compatibility

The bit is made from high-speed steel with an oxide coated finish for durability during repeated use. Its straight shank features three flats that lock securely into a standard 1/4 in chuck, reducing slippage during operation. The overall length of 2 7/8 in provides reach while maintaining rigidity.

Included Extras

The product is supplied as the drill bit only; no case, lubricant or additional accessories are included. California Proposition 65 warnings advise that the item contains chemicals known to cause cancer and reproductive harm, so appropriate personal protective equipment should be used when handling or machining.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 73% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameWestward
Model name6EXN3
Product typeDrill Accessories
Size & build
Main materialHigh Speed Steel w/Oxide Coated Finish

Questions about this item

What shank size does the 1/4 in straight three-flat shank fit?

The 1/4 in straight shank with three flats fits any standard 1/4 in drill chuck, including keyless and keyed models, providing positive grip without slipping.

What is the maximum material thickness the 3.4 mm step depth can drill?

Each of the 13 steps cuts to a maximum depth of 3.4 mm, so the bit is suited for sheet metal, plastic or thin-walled tube up to that thickness per step.

How do you start the 1/8 in pilot step without the bit walking?

Centre-punch the hole location, apply steady axial pressure and run the drill at low RPM until the 1/8 in pilot engages before increasing speed for the remaining steps.

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