Guhring 9085210123000 Carbide Drill Bit 31/64 Inch

Product Description

The GUHRING 9085210123000 is a solid carbide jobber length drill bit designed for high-performance drilling in demanding industrial and trade applications. Built to DIN specification, this bit features a 31/64 inch (0.4843 inch) diameter, a 140-degree split point for self-centering entry, and an internal coolant-through channel that extends tool life and manages heat in deep-hole and high-speed operations. The nano-SI coating further reduces friction and edge wear. With a 5xD flute-to-diameter ratio and web-thinned geometry, it drives material removal efficiently in ferrous and non-ferrous metals. Machinists, tool and die professionals, and industrial maintenance techs are the primary installers of this bit.

This drill bit is suited for precision machining environments including CNC machining centers, drill presses, and manual machines where consistent hole quality and dimensional accuracy in the 0.4000 to 0.5000 inch range are required. The coolant-through design makes it well suited for deep-hole work in steel, stainless, cast iron, and similar hard materials. The right-hand spiral flute with regular spiral type ensures clean chip evacuation in both through-hole and blind-hole applications.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• nano-SI coating reduces friction and extends cutting edge life
• 140-degree HF point with web thinning for self-centering and reduced thrust force
• Internal coolant-through channel supports high-speed and deep-hole drilling
• Right-hand cut, regular spiral flute for positive chip evacuation
• DIN specification designation ensures dimensional conformance

Compatibility

Designed as a high-performance OEM-style replacement or upgrade for solid carbide jobber length drill bits in the 0.4000 to 0.5000 inch decimal inch range. Compatible with any machine spindle or chuck accepting a 14.00 mm shank diameter.

Installation Notes

Installation is performed by machinists or qualified maintenance technicians. Secure the shank firmly in a precision chuck or collet rated for the 14.00 mm shank diameter before operation. Engage the coolant-through system prior to drilling to prevent thermal shock to the carbide substrate. Inspect the cutting edge and point geometry before each use; carbide tooling is brittle and should not be used if chipping or cracking is observed.