Guhring 9005150025800 Drill Bit 0.1015 in Stub Series 515

Product Description

The GUHRING 9005150025800 is a stub-length screw machine drill bit designed for high-productivity drilling in ferrous materials. Built from powdered metal with a coated finish, this bit delivers consistent cutting performance in applications where a standard-length drill would be impractical. The 130-degree drill point angle, parabolic flute geometry, and web-thinned tip reduce thrust and improve chip evacuation in tight setups. With an overall length of 1.6929 inches and a flute length of 0.5512 inches, this is a compact, rigid tool suited for CNC machining centers, drill presses, and screw machine operations. Manufactured to DIN 1897 standards with an h8 diameter tolerance, it meets the precision requirements of professional machining environments.

This bit is sized at wire gauge No. 38, equivalent to 0.1015 inches in diameter, and is rated for use in cast iron and steel workpieces. The straight-cylindrical shank fits standard drill chucks without requiring special tooling. Its 3xD flute-to-diameter ratio and fast spiral design make it well suited for short, accurate holes in production environments where cycle time and hole quality matter. Machinists and tool-and-die technicians working in job shops, production facilities, or maintenance departments will find this drill appropriate for both through-hole and blind-hole work within its rated drilling depth.

Key Features

• Powdered metal construction with coated finish for extended tool life in ferrous materials
• 130-degree point angle with cone relief for reduced thrust on entry
• Parabolic flute with web thinning promotes efficient chip evacuation
• Stub length (overall 1.6929 inches) provides rigidity in close-clearance setups
• Straight-cylindrical shank fits standard drill chucks and collets
• Manufactured to DIN 1897 with h8 diameter tolerance for consistent sizing

Compatibility

Designed as an OEM-specification stub drill for use in standard drill chucks and collet systems accepting a straight-cylindrical shank at 0.1015 inches diameter. Primary workpiece materials are cast iron and steel per the manufacturer specification. Conforms to DIN 1897 Series 515.

Installation Notes

Installation and operation of this drill bit should be performed by qualified machinists or toolroom technicians familiar with proper chuck and collet setup. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Verify chuck or collet runout is within acceptable limits before drilling to maintain the h8 diameter tolerance at the workpiece. Do not exceed the rated maximum drilling depth of 0.399 inches per pass without retracting to clear chips.