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Transparent plastic case holding 26 silver drill bits labelled A through Z

Century Drill & Tool

Century Drill & Tool 11526 26-Piece Letter Gauge Drill Bit Set

SKU CH-8KSF-91HM5

A 26-piece letter gauge drill bit set covering sizes A through Z, made from premium high-speed steel for precise tapping holes in wood, metal, and plastic using stationary or portable tools

  • Product colorTransparent
  • 26-piece set covers every letter gauge for precise tapping holes
  • Premium high-speed steel bits stay sharp in wood metal and plastic
  • Works in both stationary and portable drills for workshop flexibility
  • Exact-size bits produce clean threads without guesswork
  • Transparent case keeps all 26 bits organised and visible

26-Piece Letter Gauge Set

This Century Drill & Tool set provides 26 letter gauge drill bits ranging from A to Z. The bits are manufactured from premium grade high speed steel for general purpose drilling in wood, metal and plastic. They are designed to operate in both stationary and portable tools.

High Speed Steel Construction

The single specification that defines this set is the premium grade high speed steel material. It determines the hardness and heat resistance needed for accurate hole sizing across wood, metal and plastic workpieces. This material choice makes the bits suitable for tapping operations.

For Tapping and General Drilling

This set suits mechanics and fabricators who need a complete letter gauge range for precise tapping holes in mixed materials. Builders who require fractional inch, metric or wire gauge sizes should look at a different assortment. Users needing carbide tips or coated finishes for abrasive alloys will not find those features here.

How it compares

Measured against everything we stock in Ratchets, Sockets & Drive Tools, at today’s prices. Recalculated every night.

Price $148.99
Pricier than about 90% of the 418 comparable items (median $20.99).

Specifications

Product
Brand nameCENTURY DRILL & TOOL
Product colorTransparent

Questions about this item

How do the 26 letter gauge bits translate into usable hole sizes for tapping?

The set covers letters A through Z, giving you a dedicated bit for each standard letter gauge size so you can drill the exact clearance hole needed before tapping.

What shank style do these high speed steel bits use and will they fit my drill chuck?

Each bit has a straight round shank sized to its letter gauge, allowing it to clamp securely in any standard three jaw chuck on portable or stationary drills.

Will the 26 piece set fit in the supplied case without forcing the lid?

The transparent plastic case has individual molded slots for all 26 bits from A to Z, so every bit seats flat and the lid closes cleanly.

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