Guhring 9006590069000 Cobalt Drill Bit 0.2717 in

Product Description

The GUHRING 9006590069000 is a cobalt screw machine length (stub) drill bit engineered for demanding material removal in tight-clearance applications. Built to DIN 1897 standards, this heavy-duty bit measures 0.2717 inches in diameter with an overall length of 2.913 inches and a parabolic flute length of 1.339 inches. The 130-degree split point with web thinning provides aggressive penetration and reduces walking on entry. Sized as a Letter I drill, it is designed for right-hand cutting in hard and abrasive workpiece materials, particularly titanium alloy, where tool durability and chip evacuation are critical.

This bit fits production machining, maintenance, and fabrication environments where stub-length rigidity is preferred over jobber-length reach. The parallel web configuration and 3xD flute-to-diameter ratio support controlled chip flow in through-hole and blind-hole drilling in ferrous and non-ferrous hard materials. Maximum recommended drilling depth is 0.931 inches. It is suited for use in CNC machining centers, drill presses, and hand-held industrial drilling equipment requiring a straight-cylindrical shank. No coolant-through capability; external coolant or cutting fluid is recommended when drilling titanium alloy or similarly hard workpieces.

Key Features

• Cobalt tool material with coated finish for extended wear resistance in hard materials
• 130-degree drill point angle with web thinning for fast penetration and reduced thrust
• Parabolic flute geometry with parallel web for efficient chip evacuation
• Stub length construction provides added rigidity and reduced deflection
• Right-hand cut with straight-cylindrical shank for broad machine compatibility
• Manufactured to DIN 1897 specification, heavy-duty grade

Compatibility

Designed as an OEM-style replacement or direct-fit drill bit for machines accepting a straight-cylindrical shank in stub (screw machine) length format, per DIN 1897. Primary workpiece material rating is titanium alloy; also applicable to other hard and difficult-to-machine materials.

Installation Notes

Installation of this drill bit is performed by qualified machinists or tooling technicians. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Secure the straight-cylindrical shank fully in the chuck or collet to the recommended grip depth to prevent pullout under load. Apply external cutting fluid when drilling titanium alloy or similar hard materials, as this bit does not feature coolant-through capability.