Import BDNA--20909-1 Mechanics Drill Bit 13/64 in Hss

Product Description

The IMPORT BDNA--20909-1 is a mechanics-length twist drill bit designed for general-purpose drilling in metal and ferrous materials. Manufactured from high speed steel with an oxide finish, it measures 13/64 inch (0.2031 inch) in diameter with an overall length of 3.125 inches and a flute length of 1.9375 inches. The 135-degree split point reduces walking on contact and requires no center punch on flat surfaces. The straight-cylindrical shank fits standard three-jaw drill chucks. Right-hand cutting geometry and a regular spiral flute make this bit a practical stock item for machining and fabrication shops.

This drill bit is suited for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel workpieces. The mechanics length designation means a shorter overall length than a jobber bit, providing added rigidity in tight clearance situations. Typical applications include machine shop work, maintenance repair, and light manufacturing where a compact, stiff bit is preferred over a longer jobber-length equivalent. It is sold individually and is appropriate for both bench drill press and hand-held drill applications.

Key Features

• 13/64 inch (0.2031 inch) diameter with 135-degree split point for reduced thrust and no-walk entry
• High speed steel construction for durability across carbon steel, cast iron, and stainless steel
• Oxide finish for basic lubricity and corrosion resistance during storage and use
• Mechanics length (3.125 inches OAL) provides greater rigidity than jobber-length equivalents
• Straight-cylindrical shank compatible with standard three-jaw chucks
• Web-thinned, parallel web configuration with regular spiral flute for efficient chip evacuation

Compatibility

Designed as a general-purpose mechanics-length drill bit compatible with any standard three-jaw drill chuck accepting a straight-cylindrical shank in the 13/64 inch diameter range.

Installation Notes

Install and remove drill bits only after the drill press or hand drill has been fully powered down and brought to a complete stop. Secure the shank fully in the chuck and tighten all jaws evenly before operation. Use appropriate cutting fluid or coolant when drilling stainless steel or high alloy materials to extend bit life, noting this bit does not support coolant-through delivery. Follow applicable shop safety standards and wear eye protection during all drilling operations.