Century Drill Tool 11403 No. 3 Wire Gauge Drill Bit Hss

Product Description

The CENTURY DRILL TOOL CO INC 11403 is a No. 3 wire gauge straight shank drill bit manufactured from premium-grade high speed steel (HSS). The precision-ground 118-degree split-point tip reduces walking on entry and extends cutting life across repeated use. At 0.12 pounds, this is a lightweight bit sized for applications where standard fractional sizes are too coarse. It is suited for machinists, fabricators, electricians, and maintenance technicians who require close-tolerance hole sizing in ferrous and non-ferrous materials as well as plastics and wood.

This bit is designed for general-purpose drilling in wood, metal, and plastic. The straight shank fits standard drill chucks found on both stationary equipment such as drill presses and portable hand drills. The wire gauge sizing makes it a go-to choice when drilling pilot holes, clearance holes, or tap-drill holes where a specific wire gauge diameter is called out on a print or spec sheet. A cutting lubricant is recommended during metal drilling to reduce heat buildup and extend bit life.

Key Features

• No. 3 wire gauge sizing for close-tolerance drilling applications
• Premium-grade high speed steel construction for durability across wood, metal, and plastic
• Precision-ground 118-degree tip for accurate entry and extended service life
• Straight shank compatible with standard drill chucks on stationary and portable tools
• Lightweight at 0.12 pounds for easy handling and tool balance
• Compatible with cutting lubricants to reduce heat and prolong cutting edge life

Compatibility

Designed as a general-purpose wire gauge drill bit for use in standard drill press chucks and portable drill chucks that accept straight shank bits.

Installation Notes

Secure the bit firmly in the chuck and verify it runs true before drilling. When drilling metal, apply an appropriate cutting lubricant to the tip to reduce heat and prevent premature dulling. Use reduced feed pressure on breakthrough to avoid grabbing or bit breakage. Always wear appropriate eye protection and secure the workpiece before starting the drill.