Guhring 9003360030500 Taper Length Drill Bit 0.12 in

Product Description

The GUHRING 9003360030500 is a cobalt taper length drill bit designed for high-performance drilling in demanding materials. Built to DIN 340 standards, it features a 0.1200-inch diameter with a 130-degree split point and parabolic flute geometry. The web-thinned, parallel web construction reduces thrust and improves chip evacuation in deep-hole applications. With an overall length of 4.1875 inches and a flute length of 2.6875 inches, this bit handles drilling depths up to 2.537 inches. It is sized as a No. 31 wire gauge equivalent and suits HVAC technicians, machinists, and industrial maintenance professionals working with tight-tolerance bores.

This drill bit is suited for use in cast iron, hardened materials, stainless steel, and carbon steel. The parabolic flute design promotes efficient chip removal in deep cuts, making it a practical choice for production drilling and maintenance work where hole quality and tool life matter. The right-hand cut and cylindrical shank allow it to seat directly in standard drill chucks without adapters. It is appropriate for both manual drill press setups and CNC machining centers where a taper length reach is required.

Key Features

• Cobalt construction provides heat resistance and wear life in abrasive and hard materials
• 130-degree point angle reduces walking and improves entry accuracy on curved or sloped surfaces
• Parabolic flute geometry with web thinning lowers axial thrust and clears chips efficiently
• Bright/uncoated finish maintains dimensional consistency and allows visual wear inspection
• Flute-to-diameter ratio of 10xD supports drilling depth up to 2.537 inches in a single pass
• DIN 340 specification ensures dimensional and performance conformance to an established standard

Compatibility

Designed as an OEM-style taper length drill bit for use in standard cylindrical-shank drill chucks and collet holders compatible with a 0.1200-inch to 0.1201-inch shank diameter. Rated for cast iron, hardened materials, stainless steel, and steel as stated by the manufacturer.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician familiar with drill press or CNC spindle operation. Secure the cylindrical shank fully in the chuck or collet and verify runout before drilling. Always power down the machine and engage lockout/tagout procedures before changing tooling. Do not exceed the maximum drilling depth of 2.537 inches without withdrawing the bit to clear chips.