Guhring 9006180082000 Extra Length Cobalt Drill Bit Letter P

Product Description

The GUHRING 9006180082000 is a Series 618 extra length cobalt drill bit sized to Letter P (0.3228 inches / 8.20 mm diameter), designed for deep hole drilling in demanding production and maintenance applications. The 130-degree split point and parabolic flute geometry work together to reduce thrust force, improve chip evacuation, and maintain straightness over the full 6.496-inch flute length. With an overall length of 9.449 inches and a 15xD flute-to-diameter ratio, this bit reaches depths that standard-length drills cannot. A nitride finish and web-thinned, tapered web construction further support tool life and cutting performance in difficult materials. Right-hand cutting direction, straight-cylindrical shank. Installed by machinists and tool-room technicians in CNC and manual drilling operations.

This drill bit is rated for primary use in aluminum and titanium alloy workpieces (ISO material codes K, M, N, P, S) and is also suitable for secondary use in steel (ISO code H). The extra length format makes it appropriate for through-hole and deep-cavity work in aerospace components, structural parts, and industrial fabrication where standard-length drills lack reach. Maximum drilling depth is 6.012 inches (152.70 mm). The straight-cylindrical shank seats directly in standard drill chucks or collet holders without adapters.

Key Features

• Letter P size: 0.3228 inches (8.20 mm) diameter with tolerance of +0.000 to -0.022 mm
• 130-degree standard point with web thinning for reduced entry thrust
• Parabolic flute profile improves chip flow in deep-hole applications
• 15xD flute-to-diameter ratio supports drilling to 6.012 inches (152.70 mm) depth
• Cobalt high-performance tool material with nitride finish for extended tool life
• Manufactured to DIN 1869 specification
• Right-hand cutting, two-flute design

Compatibility

Designed for deep hole drilling in aluminum, titanium alloy, and steel workpieces per ISO material codes K, M, N, P, S, and H. Fits standard drill chucks and collet holders accepting a 0.3228-inch straight-cylindrical shank.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or tool-room technicians familiar with cutting tool setup and machine operation. Secure the shank fully in a properly sized chuck or collet and verify runout before production use. Ensure the drilling machine is at a full stop before installing or removing the bit. Follow machine manufacturer guidelines and applicable shop safety standards for speeds, feeds, and coolant when drilling titanium alloy or hardened steel.