Guhring 9003290016500 Cobalt Stub Drill Bit 0.065in

Product Description

The GUHRING 9003290016500 is a cobalt (M35 material grade) stub-length screw machine drill bit designed for drilling in tough workpiece materials including titanium alloy. It carries a 0.065 inch (1.65 mm) diameter with a 130-degree split point and a web-thinned, tapered web configuration that reduces entry force and improves chip evacuation. The bright/uncoated finish suits applications where coating buildup could affect tight tolerance work. Overall length is 1.3386 inches (34 mm), making this a compact, rigid tool suited for close-tolerance drilling in production environments. Licensed trade professionals and machining specialists install and operate this bit.

This bit is built for production drilling applications where rigidity and short flute length reduce deflection. The stub length format — with a flute length of 0.3937 inches (10 mm) and a maximum drilling depth of 0.3937 inches (10 mm) — makes it well suited for CNC screw machine work, multi-spindle applications, and any setup where a standard-length drill would flex or chatter. Its right-hand cut spiral flute and straight-cylindrical shank seat securely in standard drill chucks and collet holders. Conforming to DIN 1897, this bit fits into shops that specify to metric European tooling standards.

Key Features

• Cobalt M35 construction provides heat and wear resistance for drilling titanium alloy and other difficult materials
• 130-degree point angle with web thinning reduces thrust force and improves centering on entry
• Stub length (DIN 1897) format increases rigidity and minimizes deflection in short-depth holes
• Bright/uncoated finish maintains dimensional accuracy where coating thickness is a concern
• Straight-cylindrical shank compatible with standard drill chucks and collet systems
• Right-hand spiral flute with regular helix for consistent chip clearing in through and blind holes

Compatibility

Designed as an OEM-specification stub-length drill bit conforming to DIN 1897 standards, suitable for use in standard drill chucks and collet holders accepting a 1.65 mm straight-cylindrical shank. Primary workpiece material rating is titanium alloy; also applicable to other high-strength materials within the capability of M35 cobalt tooling.

Installation Notes

This bit is installed and operated by machinists and CNC tooling technicians. Secure the straight-cylindrical shank fully in the chuck or collet before operation and verify runout before commencing a drilling cycle. Power down and de-energize the machine spindle before changing or inspecting tooling. Do not exceed the rated maximum drilling depth of 0.3937 inches without retracting to clear chips, as the short flute length limits chip evacuation capacity in deeper passes.