Guhring 9006530064500 Screw Machine Drill Bit Hss

Product Description

The GUHRING 9006530064500 is a stub-length, high speed steel screw machine drill bit designed for fast, accurate hole-making in ferrous and cast iron workpieces. Built to DIN 1897 standards, this Series 653 bit measures 6.45 mm (0.2539 inches) in diameter with a total overall length of 70 mm (2.76 inches) and a flute length of 31 mm (1.22 inches). The 118-degree cone relief point and web-thinned tip reduce entry force and improve chip evacuation. The straight-cylindrical shank seats reliably in standard drill chucks and collet holders used in CNC machining centers, drill presses, and manual machines.

This drill bit is suited for production and maintenance applications in shops working with steel and cast iron. Its stub-length body provides added rigidity compared to jobber-length bits, making it a preferred choice for screw machine work, tight-clearance drilling, and applications where deflection control matters. The 2-flute regular spiral geometry and 3xD flute-to-diameter ratio support efficient chip removal at standard cutting parameters. The h8 diameter tolerance ensures consistent fit in tight-tolerance setups. It is sold individually and is appropriate for machinists, toolroom technicians, and maintenance professionals.

Key Features

• DIN 1897 stub-length geometry for enhanced rigidity and reduced deflection
• 118-degree cone relief point with web thinning for reduced entry force
• High speed steel M2 grade construction for durability in steel and cast iron
• Straight-cylindrical shank with h8 diameter tolerance for consistent chuck seating
• 2-flute regular spiral design supports efficient chip evacuation
• No coolant-through requirement — suitable for dry or flood-cooled operations

Compatibility

Designed as an OEM-style replacement or production drill for use in standard drill chucks and collet systems accepting a 6.45 mm straight-cylindrical shank. Primary workpiece materials are steel and cast iron per manufacturer specifications.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians. Secure the shank fully in a properly sized drill chuck or collet before operation and verify runout is within acceptable tolerance for the application. Ensure the machine spindle is fully stopped before changing tooling. Follow applicable shop safety protocols and OSHA machine guarding requirements when operating drill presses or CNC equipment.