We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
5/16 inch black oxide HSS jobber drill bit with split point

Westward

Westward 5XL81 5/16" HSS Black Oxide 135° Jobber Drill Bit

SKU CH-HFSM-2CKGY

A 5/16 inch HSS black oxide jobber drill bit with a 135 degree split point for general drilling

  • Product typeAngle, Pitch & Slope Locators
  • 5/16 in fractional size for precise hole diameter
  • 135 degree split point reduces walking on hard materials
  • High-speed steel construction resists heat during extended drilling
  • Black oxide finish adds corrosion protection and chip flow
  • Jobber length suits standard drilling depth requirements

Westward 5/16" HSS Jobber Bit

This Westward drill bit is a 5/16 inch high-speed steel jobber length tool designed for general-purpose drilling in metal, wood and plastic. It suits tradespeople and DIY users who need a reliable fractional-size bit for everyday workshop tasks.

135° Split Point with Black Oxide

The 135 degree split point reduces walking and starts holes cleanly without a centre punch. Black oxide finish adds corrosion resistance and helps retain lubricant during cutting. High-speed steel construction handles typical ferrous and non-ferrous materials but will wear faster in hardened steel or high-volume production runs.

Decimal Size 0.3125 Inch

The bit’s exact decimal equivalent is 0.3125 inch, which determines whether it matches the hole specification on your drawing or tap chart. Verify this diameter against your required clearance or thread size before purchasing.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $2.99
Cheaper than about 96% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameWestward
Product typeAngle, Pitch & Slope Locators

Questions about this item

Will the 5/16 inch size and 135 degree split point work with my older 3/8 inch drill chuck?

The 5/16 inch shank fits any chuck that accepts up to 3/8 inch, and the 135 degree split point reduces walking on hard materials without needing a centre punch.

How can I confirm the bit is cutting correctly once I start drilling?

A properly sharpened 135 degree split point produces short, curled chips and drills straight without excessive pressure or wandering.

Does the box contain only the single 5/16 inch bit or a set, and is a case included?

The item is sold as an individual jobber length drill bit; no case or additional bits are included in the packaging.

More in Utility & Specialty Hand Tools

Similar items