Sandvik Coromant 7781674 Carbide Jobber Drill 5.30mm

Product Description

The SANDVIK COROMANT 7781674 is a solid carbide jobber-length drill bit in the 860-GM series, designed for high-performance drilling in demanding production environments. The 5.30 mm diameter tool features a 140-degree point angle and a PVD-applied multi-layer TiAlSiN plus TiSiN coating that extends tool life when cutting through abrasive and hard materials. Overall length is 82.00 mm, with a 44.00 mm flute length and a maximum drilling depth of 27.20 mm. The straight cylindrical shank measures 6 mm in diameter, making it compatible with standard collet chucks and hydraulic toolholders used in CNC machining centers and drill presses.

This drill is suited for machining steel, cast iron, and hardened materials in shop and production settings where tool consistency and hole quality are critical. The 7xD flute-to-diameter ratio and regular spiral flute geometry support efficient chip evacuation in deep-hole drilling passes. Coolant-through capability allows internal coolant delivery directly to the cutting edge, reducing heat buildup during high-feed operations. Machinists and CNC operators working in job shops, aerospace component production, and general metalworking will find this drill appropriate for tight-tolerance drilling applications across workpiece material categories P, M, K, N, S, and H per ISO classification.

Key Features

• Solid carbide construction provides rigidity and wear resistance in hard and abrasive workpiece materials
• PVD multi-layer TiAlSiN plus TiSiN coating reduces heat transfer and extends cutting life
• 140-degree point angle supports accurate entry and reduces thrust force on entry
• Coolant-through design delivers cutting fluid directly to the tip for heat management in deep holes
• Regular spiral flute geometry promotes consistent chip evacuation during drilling
• Conforms to DIN 6535HA specification for straight shank tooling interchangeability

Compatibility

Designed for use with steel, cast iron, and hardened materials across ISO material categories P, M, K, N, S, and H. The 6 mm straight cylindrical shank is compatible with standard collet chucks and hydraulic toolholders conforming to DIN 6535HA. Suitable for CNC machining centers and drill presses equipped with coolant-through spindle capability.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe state before loading or changing tooling. Seat the shank fully into the toolholder and torque the retention mechanism per the toolholder manufacturer specifications. Verify coolant-through lines are clear and pressure is set appropriately for the application before beginning a drilling cycle.