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Silver cylindrical twist drill bit with black oxide coating and pointed tip

Westward

Westward 5/16" HSS Black Oxide 118 Deg Jobber Length Drill Bit

SKU CH-76HG-Q9CVE

High-speed steel jobber drill bit with 118-degree point and black oxide finish for general-purpose drilling

  • Product typeAngle, Pitch & Slope Locators
  • 118-degree point angle enables accurate drilling starts
  • High-speed steel construction resists heat during extended use
  • Black oxide finish reduces friction and chip welding
  • 5/16 inch fractional size fits standard jobber applications
  • Decimal equivalent .3125 matches precise hole requirements

5/16" HSS Jobber Drill Bit

This 5/16 inch high-speed steel drill bit is designed for general-purpose drilling in metal, wood and plastic. The fractional size and 118-degree conventional point suit maintenance, fabrication and automotive tasks where a standard jobber length is required.

Black Oxide Finish and Conventional Point

The black oxide coating provides corrosion resistance and reduces chip welding during extended use. A conventional 118-degree point centres quickly without a pilot hole, while the straight shank fits common three-jaw chucks for fast bit changes on the job site.

Replaces Worn or Undersized Bits

Swapping a dull or smaller-diameter bit for this 5/16 inch tool restores clean hole quality and accurate sizing. The upgrade is worthwhile when existing bits no longer hold an edge or when a project demands the precise .3125 decimal equivalent for bolt clearance or tapping operations.

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

What material does the 118-degree point angle apply to?

The 118-degree conventional point is ground on high-speed steel suited for general-purpose drilling.

What shank size fits a 5/16-inch jobber-length bit?

The bit has a straight 5/16-inch shank that matches the drill diameter for standard three-jaw chucks.

How do you avoid walking when starting a 5/16-inch HSS bit?

Centre-punch the workpiece, then apply steady pressure at low speed until the 118-degree point engages fully.

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