Guhring 9055120051100 Taper Length Drill Bit 0.2010 in

Product Description

The GUHRING 9055120051100 is a taper length drill bit built for precision drilling in demanding materials. Manufactured from solid carbide with a coated finish, this bit features a 140-degree split point (SU type) that provides self-centering entry and reduces walking on hardened or abrasive workpiece surfaces. The spiral flute geometry is a regular right-hand cut with a 7xD flute-to-diameter ratio, supporting chip evacuation in deep-hole applications. Through-coolant capability allows the bit to run at higher speeds in production environments. It is sized at 0.2010 inches (No. 7 wire gauge) diameter and is designed for use by machinists, tool-and-die technicians, and industrial maintenance professionals.

This drill bit is suited for cutting alloy steel, cast iron, and stainless steel. It performs in CNC machining centers and manual drill presses where consistent hole quality and tool life are priorities. The straight shank with a 6 mm diameter fits standard collet and chuck systems. With an overall length of 90 mm and a flute length of 50 mm, the 9055120051100 is sized for intermediate-depth drilling within its 42.34 mm maximum drilling depth. It is a strong fit for aerospace, automotive, and general metalworking applications where web-thinned carbide tooling is specified.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard metals
• 140-degree SU split point with web thinning for self-centering entry
• Through-coolant design supports high-speed production drilling
• Right-hand spiral flute with 7xD ratio aids chip evacuation in deeper holes
• Coated finish extends tool life in abrasive material applications
• Conforms to DIN 6537 standard for taper length drill geometry

Compatibility

Compatible with alloy steel, cast iron, and stainless steel workpieces. Straight shank diameter of 6 mm is compatible with standard ER collet chucks and Jacobs-style drill chucks that accept metric shank sizing. Designed for use in Series 5512 tooling applications per GUHRING specifications.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with carbide cutting tools. Ensure the spindle, collet, and chuck are powered off and the machine is locked out before changing tooling. Solid carbide bits are brittle compared to high-speed steel — avoid side loading, interrupted cuts at high feed rates, or dropping the tool. Through-coolant connections should be verified and sealed before engaging the spindle to prevent dry running.