Guhring 9003010004900 Micro Drill Bit 0.0193 in Cobalt

Product Description

The GUHRING 9003010004900 is a cobalt micro drill bit designed for precision drilling in small-diameter applications. It measures 0.0193 inches in diameter with an overall length of 0.984 inches and a 118-degree faceted point angle. The bit features a spiral flute geometry, web-thinned and tapered web configuration, and a straight-cylindrical shank. The bright, uncoated cobalt construction provides heat resistance and edge retention suited to demanding materials. This tool is typically installed by machinists, toolroom technicians, and precision fabricators working in production or maintenance environments.

This micro drill bit is engineered for right-hand cutting in tight-tolerance applications. Its primary rated workpiece material is aluminum, with secondary suitability for titanium alloys. The 5xD flute-to-diameter ratio supports chip evacuation in shallow blind holes. Maximum drilling depth is 0.105 inches (2.67 mm), and the flute length is approximately 0.134 inches (3.40 mm). It conforms to DIN 1899 specification and carries UNSPSC code 23241600. The Series 301 designation places it within a consistent Guhring micro drill family used across precision machining and aerospace maintenance work.

Key Features

• Cobalt tool material for elevated heat resistance and edge retention in hard workpiece materials
• 118-degree faceted point with web thinning for accurate hole entry and reduced thrust force
• Bright, uncoated finish suitable for use with cutting fluids in aluminum and titanium alloy applications
• Straight-cylindrical shank compatible with standard micro drill chucks and collet holders
• DIN 1899 compliant construction for consistent dimensional accuracy across the series
• Diameter tolerance of +0.000 to -0.004 mm for tight-fit hole requirements

Compatibility

Designed as an OEM-specification micro drill bit per DIN 1899 for use in precision machining of aluminum and titanium alloy workpieces. Compatible with standard straight-shank micro drill chucks and collet systems accepting a 1.00 mm shank diameter.

Installation Notes

Installation and use of this micro drill bit should be performed by a qualified machinist or toolroom technician. Secure the straight-cylindrical shank firmly in a compatible micro chuck or collet holder before operation, and verify runout is within acceptable limits for the application. Due to the small diameter, feed rates and spindle speeds must be carefully controlled to prevent bit deflection or breakage. Do not use this bit beyond its rated maximum drilling depth of 0.105 inches without retracting to clear chips.