Guhring 9055190016100 Cobalt Jobber Drill Bit No. 52

Product Description

The GUHRING 9055190016100 is a cobalt jobber-length drill bit in wire gauge size No. 52, equivalent to 0.0635 inches in diameter. Built to DIN 338 standards from M35 cobalt steel, it carries a Titanium Nitride (TiN) coating for extended wear resistance and improved chip evacuation in demanding materials. The four-facet split point reduces walking and lowers thrust force at entry. With an overall length of 43 mm and a 20 mm flute length, this bit is sized for short, controlled drilling cycles. It is installed by machinists, toolroom technicians, and maintenance mechanics on drill presses, CNC machining centers, and hand-held power drills.

This drill bit is suited for work in aluminum, low-alloy steels, and non-ferrous metals, reflecting its K, M, N, and P material group ratings per DIN classification. It handles a maximum drilling depth of 17.59 mm and is a practical choice for precision hole-making in light manufacturing, electronics assembly fixtures, and general metalworking applications where a small-diameter, coated cobalt bit is required. The straight-cylindrical shank seats directly into standard drill chucks and collet holders without adapters.

Key Features

• M35 cobalt steel construction for heat and wear resistance in hard and abrasive materials
• TiN coating reduces friction and extends tool life compared to uncoated HSS bits
• Four-facet split point for self-centering entry and reduced thrust
• Right-hand spiral flute with regular helix for efficient chip removal
• Web-thinned, tapered web design lowers cutting forces on small-diameter work
• DIN 338 standard geometry ensures dimensional consistency and interchangeability

Compatibility

Designed as a jobber-length cobalt drill bit conforming to DIN 338 geometry, compatible with standard drill chucks and collet systems accepting a 1.61 mm straight-cylindrical shank. Suitable for drilling aluminum, non-ferrous metals, and low-to-medium alloy steels per material group codes K, M, N, and P.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with cutting tool practices. Secure the shank fully in the chuck or collet and verify runout before drilling. Always power down the machine and lock out energy sources before changing tooling. Do not exceed the recommended drilling depth of 17.59 mm per pass without retracting to clear chips.