Value Collection 01243856 Jobber Drill Bit 3.85 Mm Hss

Product Description

The VALUE COLLECTION 01243856 is a high speed steel jobber-length drill bit designed for general-purpose drilling in steel, cast iron, and similar ferrous materials. It features a 118-degree standard point angle with web thinning and a tapered web configuration, which helps reduce the force needed to start and maintain a cut. The bit measures 3.85 mm (0.1516 inches) in diameter with an overall length of 75.00 mm (2.95 inches) and a flute length of 43.00 mm (1.69 inches). An oxide coating provides a degree of lubricity and surface protection during cutting. Licensed tradespeople and machinists performing layout, fabrication, and maintenance work are the primary users of this type of drill.

This jobber drill bit is suited for light to medium drilling operations in residential and commercial trade applications including HVAC fabrication, electrical rough-in, plumbing rough-in, and general metalwork. The straight cylindrical shank fits standard drill chucks without modification. With a diameter range classification of 3.00 mm to 4.00 mm, this bit fits within a common sizing tier used across metric-dimensioned work. Right-hand spiral flutes clear chips efficiently during through-hole and blind-hole drilling in steel and cast iron substrates.

Key Features

• 3.85 mm diameter with 0.1516 inch decimal equivalent for metric and imperial cross-reference
• 118-degree standard point angle for general-purpose ferrous metal drilling
• Web-thinned tapered web reduces thrust and improves centering on entry
• Oxide coating adds surface lubricity and corrosion resistance during use
• Two regular spiral flutes with right-hand cutting direction for efficient chip evacuation
• Straight cylindrical shank compatible with standard keyed and keyless drill chucks

Compatibility

Designed as a general-purpose jobber drill bit for use in handheld drills, drill presses, and CNC drilling operations where a 3.85 mm straight-shank bit is specified. Primary workpiece materials are steel and cast iron.

Installation Notes

Install in a properly sized drill chuck and tighten securely before operation. Ensure the workpiece is clamped or fixtured to prevent rotation during drilling. Use appropriate cutting fluid or lubricant when drilling steel to extend bit life and improve hole quality. Inspect the cutting edges for wear before each use and replace the bit if the point or flute margins show signs of dulling or chipping.