Guhring 9057680122000 Carbide Jobber Drill 12.20mm

Product Description

The GUHRING 9057680122000 is a solid carbide jobber-length drill bit engineered for precision hole-making in aluminum and non-ferrous materials. Manufactured from ultra fine grain carbide, it delivers consistent cutting performance and extended tool life compared to standard HSS drills. The 140-degree cone relief point geometry reduces thrust force and promotes self-centering at entry. At 12.20 mm in diameter (0.4803 inches) with an overall length of 124.00 mm (4.88 inches), this drill is built for production and maintenance environments where dimensional accuracy and finish quality matter. Coolant-through capability supports chip evacuation and heat management in high-cycle applications.

This drill is suited for machining aluminum alloys, copper, brass, and other non-ferrous metals in CNC machining centers, drill presses, and manual mills. Its straight cylindrical shank with a 14 mm shank diameter seats securely in standard drill chucks and collet holders. The 5xD flute-to-diameter ratio and 77.00 mm (3.03 inches) flute length accommodate moderate-depth holes up to 58.70 mm. Machinists working in job shops, aerospace subcontract, and general manufacturing will find this drill well matched to tight-tolerance through-hole and blind-hole work in non-ferrous workpieces.

Key Features

• Solid carbide ultra fine grain construction for extended tool life in non-ferrous applications
• 140-degree cone relief point for reduced entry thrust and improved self-centering
• Coolant-through design supports chip flushing and thermal control at depth
• Right-hand cut, regular spiral flute geometry optimized for aluminum and non-ferrous materials
• Straight cylindrical shank compatible with standard chucks and collet systems
• Bright/uncoated finish maintains sharp edge geometry without coating buildup

Compatibility

Designed for use in CNC machining centers and conventional drilling equipment with toolholders accepting a 14 mm straight cylindrical shank. Optimized for aluminum and non-ferrous workpiece materials per manufacturer specification.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power locked out. Confirm shank seating and runout with a dial indicator before commencing production cuts. Apply coolant through the spindle where the machine tool supports it to achieve rated drilling depth performance. Follow shop safety procedures and applicable OSHA machine guarding standards when operating drilling equipment.