Import BDNA--20904-1 Mechanics Drill Bit 1/8 in Hss

Product Description

The IMPORT BDNA--20904-1 is a mechanics-length high-speed steel drill bit designed for general-purpose drilling in metal and alloy materials. With a 1/8 inch (0.1250 inch) diameter and a 135-degree split point, this bit starts on contact without a center punch and reduces walking on hard surfaces. The oxide finish provides a base level of lubricity and heat resistance during cutting. At 2.5 inches overall length, this is a compact bit suited for close-quarter or confined drilling applications where a standard-length bit would be too long.

This drill bit is intended for use by machinists, maintenance technicians, HVAC and plumbing installers, electricians, and general tradespeople who need a reliable short-length bit for drilling through carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel workpieces. The mechanics-length design keeps the bit rigid and reduces deflection, making it well suited for accurate hole placement in sheet metal, structural members, and equipment housings.

Key Features

• 135-degree split point starts on contact and reduces bit walking without a center punch
• Mechanics-length body at 2.5 inches OAL provides rigidity and reduces deflection in tight spaces
• High-speed steel construction handles a wide range of ferrous metals and alloys
• Oxide finish offers basic lubricity and heat resistance during drilling operations
• Right-hand cut with regular spiral flutes for standard drilling in most drill press and hand-drill applications
• Web-thinned design reduces thrust force required during drilling

Compatibility

Designed as a general-purpose mechanics-length drill bit compatible with any standard drill chuck accepting a straight cylindrical shank. Suited for use in hand drills, drill presses, and magnetic drills where a 1/8 inch diameter bit is required.

Installation Notes

This bit is installed and operated by machinists, maintenance technicians, and trade professionals using standard drill equipment. Secure the straight cylindrical shank firmly in the chuck before operation and confirm the workpiece is clamped or secured. Use appropriate cutting fluid when drilling stainless steel or high alloy materials to extend bit life. Wear appropriate eye protection and follow applicable workplace safety standards when operating rotary cutting tools.