Guhring 9055100065000 Carbide Drill Bit 0.2559 in 140

Product Description

The GUHRING 9055100065000 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding production environments. Built to DIN 6537K standards, this bit features a 140-degree split point with SU geometry and web thinning for fast, accurate entry with reduced thrust. The 6.50 mm (0.2559 inch) diameter, two-flute spiral design paired with through-coolant capability makes it well suited for continuous-duty machining operations. At 79.00 mm overall length and a 34.00 mm flute length, the compact screw machine profile delivers rigidity in short-reach applications. Licensed machinists, tool and die shops, and CNC operators typically specify this bit for cast iron and steel workpieces.

This drill bit is intended for use in CNC machining centers, screw machines, and manual drill presses where tight tolerances and consistent hole quality are required. Primary workpiece materials include cast iron and steel. The through-coolant feature extends tool life and improves chip evacuation at higher feed rates and spindle speeds. The 8.00 mm straight-cylindrical shank fits standard ER and straight-bore toolholders common in production machine shops. The 3xD flute-to-diameter ratio supports drilling depths up to 30.00 mm in a single pass without peck cycles in many applications.

Key Features

• Solid carbide submicron grade construction for extended tool life in ferrous materials
• 140-degree SU split point with web thinning reduces entry thrust and improves centering accuracy
• Through-coolant design supports high feed rates and efficient chip evacuation
• Two-flute spiral configuration with parallel web for consistent chip flow
• Coated finish for added wear resistance on cast iron and steel
• Conforms to DIN 6537K specification for dimensional consistency

Compatibility

Designed as a high-performance OEM-style carbide drill bit for use in CNC machining centers and screw machines where an 8.00 mm straight-cylindrical shank and DIN 6537K screw machine length geometry are required. Rated for cast iron and steel workpiece materials.

Installation Notes

Installation and operation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is locked out before loading or unloading the bit. Seat the straight-cylindrical shank fully and securely in the toolholder before engaging the spindle. Verify through-coolant supply lines are connected and pressure is confirmed before beginning high-feed drilling cycles to prevent premature tool wear.