Guhring 9085200030000 Screw Machine Drill Bit 3mm

Product Description

The GUHRING 9085200030000 is a solid carbide screw machine length drill bit designed for high-performance drilling in steel and high-temperature alloys. It features a 3.00 mm cutting diameter, a 140-degree cone relief point, and a multi-layer nano-Si proprietary coating that reduces friction and extends tool life under demanding cutting conditions. The bit runs right-hand cutting with a regular spiral flute configuration and is web-thinned to reduce thrust and improve chip evacuation. Coolant-through capability makes it well-suited for deep-hole applications where heat management is critical. Machinists and tooling specialists install this bit on CNC machining centers and drill presses in production environments.

This drill bit is intended for screw machine length applications where a short, rigid tool is needed to maintain positional accuracy at the spindle. Its 3xD flute-to-diameter ratio and straight cylindrical shank make it a direct fit for standard collet chucks and drill chucks used in high-volume metal cutting. Primary workpiece materials include steel and high-temperature alloys. The Series 8520 designation places it within a GUHRING line built for consistent performance on difficult-to-machine ferrous and exotic alloy workpieces.

Key Features

• Solid carbide construction, Material Grade K40, for rigidity and wear resistance in hard metals
• Multi-layer nano-Si coating reduces heat buildup and extends cutting edge life
• 140-degree cone relief point geometry improves self-centering and reduces walking on entry
• Web-thinned design lowers axial thrust and promotes cleaner chip formation
• Coolant-through channels support internal coolant delivery for deep-hole drilling
• Meets DIN 6537 K standard for dimensional accuracy and tool geometry

Compatibility

Designed as an OEM-style screw machine length drill bit for use in CNC machining centers, drill presses, and automatic screw machines equipped with collet or drill chuck toolholding rated for a 6.00 mm straight cylindrical shank. Suited for steel and high-temperature alloy workpieces per Series 8520 application guidelines.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with carbide tooling handling procedures. Solid carbide bits are brittle and must be handled carefully to avoid chipping the cutting edge before use. Secure the shank fully within the collet or chuck to the specified grip length before running the spindle. Verify coolant-through connections are properly engaged if internal coolant delivery is used, and confirm spindle speed and feed rates are appropriate for carbide tooling in the target material before cutting.