Import -20870-E Drill Bit Letter E 0.25 Inch Hss Split Point

Product Description

The IMPORT -20870-E is a mechanics-length, high-speed steel (HSS) twist drill bit sized at Letter E, equal to 0.25 inches in diameter. It features a 135-degree split point that self-centers on contact, reducing walking and the need for a center punch. The Weldon flat shank with three flats resists rotation in the chuck for positive drive during high-torque drilling operations. An oxide finish provides basic lubrication and mild corrosion resistance during use. This bit is a general-purpose tool suited for drilling through a broad range of ferrous metals in production, maintenance, and repair settings.

The -20870-E is designed for mechanics-length drilling applications where a shorter, stiffer bit improves hole accuracy in tight quarters or on flat stock. It is appropriate for use on carbon steel, cast iron, high alloy steel, high tensile strength alloys, and stainless steel. Right-hand cutting direction is standard for conventional drill press, hand drill, and magnetic drill use. The spiral flute type is regular, and web configuration is parallel with web thinning applied for improved chip clearance and reduced thrust.

Key Features

• Letter E diameter (0.25 inches) for precise sizing to common fastener and reaming applications
• 135-degree split point self-centers and reduces drill walking without a center punch
• Weldon flat shank with three flats prevents bit slippage under torque load
• Mechanics length (3.5 inches OAL, 2.0-inch flute) provides rigidity for accurate hole placement
• High-speed steel construction handles carbon steel, cast iron, stainless steel, and high alloy steel
• Oxide coating offers surface lubrication and basic protection during cutting operations

Compatibility

Designed as a general-purpose mechanics-length drill bit compatible with any standard drill chuck or Weldon flat collet accepting a 0.25-inch shank. Suitable for use in drill presses, hand drills, and magnetic base drills configured for right-hand cutting.

Installation Notes

This bit is installed by a machinist, maintenance technician, or trade professional using a drill press, portable drill, or magnetic drill. Secure the Weldon flat shank fully in a matching chuck or collet and confirm all set screws engage the flats before operation. Apply cutting fluid or lubricant when drilling stainless steel or high alloy materials to extend bit life and improve hole quality. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point is degraded.