Import BDNA--20901-1 Mechanics Drill Bit 5/64 in Hss

Product Description

The IMPORT BDNA--20901-1 is a mechanics-length drill bit designed for general-purpose drilling in metal and ferrous materials. It measures 5/64 inch (0.0781 inch decimal) in diameter with a 2-inch overall length and a 1-inch flute length. The bit is made from high speed steel with an oxide finish for basic corrosion and wear resistance. The 135-degree split point reduces walking on contact and allows drilling to start without a center punch in most applications. Right-hand spiral flutes evacuate chips efficiently during through-hole and blind-hole operations.

This mechanics drill bit is suited for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel workpieces. The shorter mechanics length provides added rigidity compared to jobber-length bits, making it a practical choice for confined spaces or applications where bit deflection is a concern. It is sold individually and fits standard drill chucks that accept straight cylindrical shanks.

Key Features

• 135-degree split point reduces bit walking and improves hole entry accuracy
• High speed steel construction handles ferrous metals including stainless steel and cast iron
• Oxide finish provides basic surface protection
• Mechanics length (2-inch OAL) offers greater rigidity than standard jobber-length bits
• Right-hand cut with regular spiral flutes for efficient chip removal
• Web-thinned parallel web design reduces cutting resistance

Compatibility

Designed as a general-purpose mechanics drill bit for use in any standard drill chuck or drill press that accepts a straight cylindrical shank. Suitable for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and steel workpieces.

Installation Notes

This bit is installed by a machinist or trade professional into a keyed or keyless drill chuck rated for the shank diameter. Ensure the workpiece is securely clamped before drilling. Use appropriate cutting fluid when drilling stainless steel or high alloy materials to extend bit life and reduce heat buildup. Do not exceed the recommended feed rate and speed for the workpiece material.