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Silver twist drill bit with black oxide finish, cylindrical shank and split point tip

Westward

Westward 5XL84 1/2" HSS Black Oxide 135 Deg Jobber Drill Bit

SKU CH-R377-RFTMJ

A 1/2 inch high-speed steel jobber drill bit with a 135-degree split point and black oxide finish

  • Product typeAngle, Pitch & Slope Locators
  • 135-degree split point starts on contact for accurate holes
  • High-speed steel construction resists wear during repeated drilling
  • Black oxide finish reduces friction and extends bit life
  • Jobber length provides reach for standard drilling tasks
  • Half-inch fractional size matches common fastener requirements

Drill bit for general-purpose metalwork

This Westward jobber-length drill bit is made from high-speed steel with a black oxide finish. It measures 1/2 inch in diameter with a decimal equivalent of 0.5000 and features a 135 degree split point designed for self-centring and reduced thrust.

Suited for machinists and maintenance technicians

The 135 degree geometry suits harder materials such as stainless steel and alloy steels where a sharper point would dull quickly. Users who primarily drill soft aluminium, wood or plastics may find a different point angle more efficient for those materials.

The 135 degree split point decides the application

This point angle and split-point design determine how the bit engages the workpiece and evacuates chips. Match the angle to the material hardness and the drilling conditions to avoid premature wear or walking.

How it compares

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

Price $10.99
Cheaper than about 78% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameWestward
Product typeAngle, Pitch & Slope Locators

Questions about this item

Which drill bit size matches the 1/2 in specification?

The 1/2 in jobber length bit with decimal equivalent 0.5000 is the only size offered for this model.

What does the 135 degree point angle do in use?

The 135 degree split point centres the bit quickly and reduces walking on hard materials.

How does the black oxide finish affect drilling?

Black oxide on high speed steel adds lubricity and corrosion resistance for longer bit life.

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