Century Drill Tool 11623 Letter W Drill Bit 3 Pack

Product Description

The CENTURY DRILL TOOL CO INC 11623 is a Letter W general-purpose drill bit with a black oxide finish, sold in a 3-piece pack. Black oxide coating reduces friction and extends tool life compared to bare high-speed steel. The Letter W designation follows the standard letter drill series, producing precise hole diameters where fractional sizes fall short. This bit is suited for trade professionals and experienced DIYers who need accurate, repeatable hole sizing in everyday materials. It weighs 0.79 pounds per pack and is packaged on a card for easy point-of-use storage.

This drill bit is designed for use in portable drills on a range of common materials including wood, plastic, and soft metals. The Letter W size is typically selected when a precise bore diameter is needed that falls between standard fractional increments. Typical applications include cabinetry rough-in, electrical box knockouts in light-gauge material, plumbing fixture pilot holes, and general mechanical assembly work where hole sizing tolerance matters.

Key Features

• Letter W sizing for more precise hole diameters than standard fractional bits
• Black oxide finish reduces friction and resists corrosion during normal use
• Compatible with standard portable drill chucks
• Recommended for wood, plastic, and soft metals
• Sold as a 3-piece pack for jobsite backup availability

Compatibility

Designed as a general-purpose Letter W drill bit for use in standard portable drills with compatible chuck sizes. Suitable for wood, plastic, and soft metal applications.

Installation Notes

Install the bit securely in the drill chuck and verify it is fully seated before operation. Wear appropriate eye protection when drilling. Match drill speed to material type — lower speeds for soft metals, higher speeds for wood and plastic. Inspect bits for wear or damage before each use and replace any bit showing visible chipping or deformation.