Guhring 9024640066000 Jobber Drill Bit 6.6mm Carbide

Product Description

The GUHRING 9024640066000 is a jobber-length drill bit engineered for precision drilling in hard and abrasive materials. Built from solid carbide grade K40, it delivers consistent performance in applications where high-speed steel tooling falls short. The bit carries a FIREX coating, which improves surface hardness and heat resistance to extend tool life in demanding cutting conditions. At 6.6 mm in diameter (0.2598 inches) with a 118-degree faceted point angle, it produces clean entry holes with minimal walking. Overall length is 101 mm (3.98 inches), with a 63 mm (2.48 inches) flute length. Installation and use are handled by machinists and tool-and-die professionals working in CNC or manual drilling setups.

This bit is suited for production and maintenance drilling in metalworking environments. The regular spiral flute geometry and right-hand cut make it compatible with standard drill press, lathe tailstock, and CNC machining center setups. The straight-cylindrical shank, matching the 6.6 mm body diameter, seats directly into standard ER collets or drill chucks without adapters. With a 5xD flute-to-diameter ratio, it handles moderate-depth holes in a single pass in most ferrous and non-ferrous alloys. The DIN specification designation confirms dimensional compliance with recognized international tooling standards.

Key Features

• Solid carbide K40 grade construction for rigidity and wear resistance in hard materials
• FIREX coating provides enhanced surface hardness and thermal protection during high-speed drilling
• 118-degree faceted point angle reduces thrust force and improves hole entry accuracy
• Right-hand cut, regular spiral flute for efficient chip evacuation
• Straight-cylindrical shank fits standard ER collets and drill chucks without adapters
• DIN specification compliance ensures dimensional consistency across tooling setups

Compatibility

Designed as a jobber-length replacement or production drill bit for standard drill chucks and ER collet systems accepting a 6.6 mm straight-cylindrical shank, within the 6.00 mm to 7.00 mm drill bit size range per DIN specification.

Installation Notes

This bit is installed by machinists in CNC machining centers, drill presses, or manual lathes. Secure the straight shank fully in the collet or chuck before operation and verify runout before cutting. Carbide tooling is brittle — avoid side-loading or using the bit to pry. Match spindle speed and feed rate to the workpiece material per established cutting data charts for solid carbide tooling.