Guhring 9085100071400 Drill Bit Letter K Solid Carbide

Product Description

The GUHRING 9085100071400 is a solid carbide screw machine length drill bit sized at letter K (0.2812 inches / 9/32 inch). It features a 140-degree facet point and GUHRING nano-A multi-layer coating designed for high-performance drilling in demanding materials. The bit has a right-hand cutting direction, a regular spiral flute configuration, and a straight cylindrical shank. With an overall length of 79.00 mm (3.1102 inches) and a flute length of 41.00 mm, it is built for precision work in tight tool-length applications. Coolant-through capability supports heat management during aggressive cuts. This bit is installed by machinists and toolroom professionals in CNC and manual drilling operations.

This drill bit is intended for use in stainless steel and high-temperature alloy applications where tool life and dimensional accuracy are critical. The screw machine length (shorter stub format) provides added rigidity compared to jobber-length bits, making it well suited for close-tolerance drilling on lathes, machining centers, and drill presses. It is rated as a high-performance grade tool conforming to DIN 6537 K standards.

Key Features

• Solid carbide construction with nano-A multi-layer coating for extended tool life in hard and abrasive materials
• 140-degree facet point angle reduces thrust and improves self-centering on difficult workpieces
• Coolant-through design channels coolant directly to the cutting edge for heat control and chip evacuation
• Web-thinned geometry reduces cutting resistance and entry force
• Straight cylindrical shank (8.00 mm diameter) compatible with standard drill chucks and collets
• Conforms to DIN 6537 K specification; material grade K40 carbide

Compatibility

Designed as a high-performance OEM-style tooling solution for CNC machining centers, drill presses, and lathes requiring a screw machine length drill bit in letter K (0.2812 inch) diameter, particularly in stainless steel and high-temperature alloy applications per DIN 6537 K.

Installation Notes

Installation should be performed by a qualified machinist following standard tooling setup procedures. Ensure the machine spindle is fully powered down and locked out before changing tooling. Confirm the shank is fully seated and properly clamped in the chuck or collet to the tool manufacturer's holding depth recommendation. Coolant-through setups require that the coolant supply line pressure and flow rate be matched to the machine spindle before initiating the cut.