Value Collection BS260000R Letter R Jobber Drill Bit Hss

Product Description

The VALUE COLLECTION BS260000R is a letter-size R jobber-length drill bit manufactured from high speed steel (HSS) with a bright, uncoated finish. It features a 140-degree split-point angle with web thinning on a tapered web, which reduces walking on entry and lowers thrust force when drilling into steel, aluminum, non-ferrous metals, and wood. The straight cylindrical shank measures 0.339 inches in diameter, matching the letter R drill size. With an overall length of 4.75 inches and a fast spiral flute design, this bit is built for general-purpose production and maintenance drilling applications. It carries ANSI specification designation and is a single-piece package suitable for individual tool crib stocking or direct job use.

This drill bit is suited for residential and light commercial maintenance, fabrication shops, and general metalworking environments where a standard letter-size R hole is required. Typical applications include through-hole drilling in mild steel plate, aluminum extrusions, non-ferrous sheet, and wood. The fast spiral flute promotes efficient chip evacuation in softer materials and keeps cutting speeds manageable in ferrous stock. This bit is commonly used by machinists, maintenance mechanics, pipefitters, and general trade technicians requiring a letter R diameter bore without tap drilling a fractional substitute.

Key Features

• Letter R size (0.339 inches decimal) for precise sizing where fractional bits do not match
• 140-degree point angle with web thinning reduces drill walk and entry thrust
• Fast spiral flute geometry promotes chip clearing in metal and wood
• High speed steel construction withstands heat generated in ferrous drilling
• Bright uncoated finish allows easy visual inspection of edge condition
• Straight cylindrical shank compatible with standard drill chucks and collet holders

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard 3-jaw drill chuck or collet system accepting a 0.339-inch straight shank, suitable for bench drill presses, hand drills, and CNC drill stations.

Installation Notes

Installation of this drill bit should be performed by a qualified machinist or trade technician following standard safe drilling practices. Secure the workpiece firmly before drilling and ensure the chuck is tightened fully on the straight shank. Power down and de-energize any drill press or machine tool before changing bits. Coolant-through is not supported on this bit; apply cutting fluid externally when drilling ferrous materials to extend edge life.