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Chicago-Latrobe 55/64 inch silver and deming drill bit with 1/2 reduced shank black oxide finish

Chicago-Latrobe

Chicago-Latrobe 55455 55/64 in 118 Degree Silver & Deming Drill 1/2 Reduced Shank

SKU CH-6H2J-RC8HR

A 55/64 inch high-speed steel drill bit with a 118-degree point angle and 1/2 inch reduced shank for secure chuck grip

  • Product typeDrill Bits
  • 55/64 in diameter for large-hole drilling
  • 118-degree point angle centres quickly in steel
  • High-speed steel body resists heat during cuts
  • Black oxide finish reduces friction and chip welding
  • 1/2 in reduced shank fits standard drill chucks

Drill bit size and point angle

This Chicago-Latrobe 55455 drill bit has a 55/64 inch diameter and a 118-degree point angle. It is made from high-speed steel with a black oxide finish. The shank is reduced to 1/2 inch for compatibility with standard chucks. It is a new power tool accessory.

Shank fit and material suitability

Check that your drill chuck accepts a 1/2 inch reduced shank before ordering. Verify that high-speed steel with black oxide finish suits the material you intend to drill. Ensure the 55/64 inch size matches the hole diameter required for your project.

General-purpose metal drilling

This bit suits users drilling standard metal workpieces with a common 1/2 inch chuck. It is not for buyers who need a larger shank diameter or a different point angle for specialised materials. Those requiring a full-size shank or alternative coating should look at other options.

How it compares

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

Price $36.99
Pricier than about 59% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits

Questions about this item

Does the 55455 drill bit come alone or in a set, and do I need a separate chuck adapter for the 1/2 reduced shank?

The 55455 is sold as a single Silver & Deming drill bit with a 1/2 reduced shank that fits standard 1/2 inch drill chucks directly, so no extra adapter is required.

The listing shows 55/64 in size and 118 degree point angle — which one should I choose for general steel drilling?

The 55/64 inch diameter with a 118 degree point angle is the only version offered for this model; it is designed for general-purpose drilling in steel using high-speed steel with black oxide finish.

How does the 118 degree point angle on the 55455 perform when drilling through thick steel plate in a handheld drill?

The 118 degree point angle on this high-speed steel bit provides reliable centering and steady chip evacuation in thick steel, while the black oxide finish reduces friction and heat buildup during extended cuts.

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