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Silver cylindrical drill bit with black oxide finish and tapered point

Westward

Westward 15/32" HSS Black Oxide 118 Deg. Jobber Drill Bit

SKU CH-BZ6V-67H21

Drills 15/32 inch holes with a 118-degree high-speed steel tip and black oxide finish

  • Product typeAlignment Tools
  • High-speed steel resists heat during drilling
  • Black oxide finish reduces friction and corrosion
  • 118-degree conventional point starts holes accurately
  • Jobber length suits general-purpose drilling tasks
  • 15/32 inch fractional size matches standard specifications

Precision drilling for metalwork

The Westward 15/32 inch HSS black oxide jobber drill bit is built for machinists and maintenance technicians who need accurate holes in steel and alloy. Its conventional 118 degree point centres quickly without a pilot hole. The fractional size matches legacy drawings and imperial hardware.

Black oxide finish reduces friction

The surface treatment lowers chip welding and extends edge life when cutting ferrous metals. High speed steel construction resists heat buildup during prolonged drilling cycles. No coolant-through capability means external lubrication is required for deep holes.

Straight shank fits standard chucks

The jobber length shank seats in any three jaw chuck or collet sized for fractional inch bits. California Proposition 65 warnings apply to chemicals present in the coating. Users must supply cutting fluid and verify workpiece clamping before starting.

How it compares

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

Price $7.99
Cheaper than about 87% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameWestward
Product typeAlignment Tools

Questions about this item

How often will the 15/32" HSS bit need resharpening or replacement?

Resharpen when the 118-degree conventional point dulls; high-speed steel can be reground multiple times before the 0.4688-inch diameter wears below usable tolerance.

What limit appears first during continuous drilling with this jobber-length bit?

Heat buildup at the black-oxide surface softens the edge faster than flute clogging, so cutting speed must drop once the shank feels hot.

How much noise, heat and power draw should I expect when running this drill bit all day?

The bit itself adds no power draw; noise and heat come from the drill motor, while the black-oxide coating reduces friction heat at the cutting lips.

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