Guhring 9085100069000 Carbide Drill Bit 0.2717 in Letter I

Product Description

The GUHRING 9085100069000 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding materials. It carries a 0.2717 inch (Letter I) diameter, a 140-degree point angle, and a VA point type with web thinning for improved center cutting. The coated finish extends tool life in abrasive applications. With coolant-through capability and a regular spiral flute geometry, this bit handles heat and chip evacuation in deep-hole work. It is sized in the DIN 6537 K standard and built to a K40 carbide grade. Licensed machinists, tool and die shops, and aerospace maintenance crews are the primary users of this tool.

This drill bit is engineered for primary use in titanium alloy workpieces, where standard HSS tooling falls short. The screw machine length body keeps the tool compact and rigid, reducing deflection in short-reach setups on CNC machining centers, knee mills, and turret lathes. The 3xD flute-to-diameter ratio supports drilling depths up to 0.931 inches (23.65 mm). The straight-cylindrical shank with an 8 mm diameter seats directly in standard ER or drill chuck toolholders without adapters.

Key Features

• Solid carbide K40 grade construction for high hardness and wear resistance in titanium alloy cutting
• Coolant-through design channels cutting fluid directly to the tip for heat control at depth
• Web-thinned VA point reduces thrust force and improves hole entry accuracy
• 140-degree point angle suited for hard, work-hardening materials
• DIN 6537 K standard geometry ensures dimensional consistency and toolholder compatibility
• Coated finish provides additional lubricity and edge protection

Compatibility

Designed for use in titanium alloy machining applications. The straight-cylindrical 8 mm shank fits standard drill chucks and ER collet systems that accept that shank diameter. Part of GUHRING Series 8510.

Installation Notes

Installation and operation should be performed by a qualified machinist or tooling technician. Secure the shank fully in the toolholder and verify runout before cutting. Coolant-through setups require a coolant-capable spindle and adequate system pressure to realize the full benefit of the through-coolant feature. Inspect the cutting edges and point geometry before each use and replace the bit if chipping or wear is visible.