Accupro 4500251 Solid Carbide Jobber Drill Bit 8 Mm

Product Description

The ACCUPRO 4500251 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding industrial and trade applications. Ground to an 8 mm diameter with a 140-degree split point angle and TiAlN coating, this bit is built for cutting harder materials at higher speeds with extended tool life. The right-hand spiral flute geometry with R-thinned web promotes clean chip evacuation and reduces thrust load on entry. Coolant-through construction supports internal cooling for sustained performance in production environments. Machinists, tool-and-die technicians, and CNC operators are the primary users.

This bit suits ferrous and non-ferrous metal drilling in machining centers, drill presses, and CNC equipment where consistent hole quality and tool longevity are priorities. The straight-cylindrical shank provides secure seating in standard collets and chucks. With a 5xD flute-to-diameter ratio and regular spiral type, it performs in general-purpose hole-making as well as moderate-depth drilling operations in steel, stainless, cast iron, and similar materials.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN coating improves heat resistance and extends tool life at elevated cutting speeds
• 140-degree point angle reduces walking and improves self-centering on entry
• Coolant-through design supports internal chip and heat management
• R-thinned web reduces axial thrust and improves penetration efficiency
• Right-hand cut, two-flute spiral geometry promotes efficient chip evacuation

Compatibility

Designed as an OEM-style replacement and standard-fitment jobber drill bit compatible with any chuck or collet system accepting an 8 mm straight-cylindrical shank per DIN specification.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or skilled tradespeople familiar with cutting tool setup and CNC or manual drill press operation. Ensure the machine spindle is fully stopped and locked out before mounting or removing the bit from the chuck or collet. Verify shank seating depth and runout before beginning a cut. Do not exceed the tool manufacturer or machine builder recommended feed and speed parameters for the workpiece material.