Value Collection -20870-B Letter B Mechanics Drill Bit Hss

Product Description

The VALUE COLLECTION -20870-B is a Letter B mechanics-length drill bit designed for general-purpose drilling in metalworking applications. It measures 0.2380 inches in diameter and features a 135-degree split point that reduces walking on contact and requires no center punch on most work surfaces. The bit is made from high-speed steel with an oxide finish to resist heat and light corrosion during use. At 3.5 inches overall length, it fits standard drill chucks and is appropriate for production-floor and maintenance drilling tasks performed by machinists, millwrights, and general mechanics.

This drill bit is sized to the Letter B standard and is suited for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel workpieces. The mechanics-length body keeps the bit rigid in short-reach drilling setups where jobber-length bits may deflect. The right-hand spiral flute evacuates chips efficiently during through-hole and blind-hole work on mill tables, drill presses, and hand drills alike.

Key Features

• Letter B size, 0.2380 inches decimal equivalent
• 135-degree split point reduces thrust and prevents bit walking
• High-speed steel construction handles heat generated in ferrous metal drilling
• Oxide coating provides light corrosion resistance and reduces friction
• Mechanics-length body provides rigidity in tight or short-reach drilling applications
• Web-thinned, parallel-web design with regular spiral flute for efficient chip removal

Compatibility

Designed as a general-purpose mechanics-length drill bit compatible with standard straight-shank drill chucks on bench drill presses, hand drills, and drill press mills. Suitable for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloys, stainless steel, and general steel workpieces.

Installation Notes

Secure the workpiece firmly before drilling and ensure the chuck is tightened to prevent bit slippage. Use appropriate cutting fluid or coolant when drilling stainless steel or high alloy steels to extend bit life. Inspect the bit for wear or chipping before each use, and replace any bit showing visible damage to the cutting edges. This bit does not support coolant-through delivery.