Sgs 51047 Solid Carbide Jobber Drill Bit No. 47

Product Description

The SGS 51047 is a solid carbide jobber-length drill bit in wire gauge size No. 47, with a decimal diameter of 0.0785 inches. It features a 118-degree faceted point and a two-flute right-hand spiral configuration. The micrograin carbide construction provides the hardness and edge retention needed for drilling composite materials and other demanding workpiece applications. At 1-3/4 inches overall length with a 7/8-inch flute length, this bit is built for short, precise drilling operations where rigidity and accuracy matter. Licensed machinists, tool-and-die technicians, and composite fabricators are the primary users.

This drill bit is designed for use in composite materials as the primary workpiece application. The 5xD flute-to-diameter ratio supports chip evacuation in shallow-to-moderate depth drilling. Maximum drilling depth is 0.7031 inches. The straight-cylindrical shank diameter of 0.0785 inches seats directly in standard collet chucks and keyless drill chucks sized for small-diameter tooling. Conformance to DIN 338 standards means it fits within the dimensional expectations of European and North American tooling systems. It is sold individually as a single-piece unit.

Key Features

• Micrograin solid carbide construction for edge retention and wear resistance
• 118-degree faceted point for precise entry in composite and hard materials
• Web-thinned, tapered web configuration reduces thrust and improves chip flow
• Two-flute right-hand spiral for efficient chip evacuation
• Bright uncoated finish maintains dimensional accuracy at the cutting edge
• DIN 338 compliant geometry for consistent fitment in standard toolholders

Compatibility

Designed for use in straight-shank collet chucks, drill chucks, and CNC spindles accepting 0.0785-inch shank diameter tooling. Primary workpiece material rating is composite. Conforms to DIN 338 jobber-length standards.

Installation Notes

Installation and use should be performed by qualified machinists or fabrication technicians familiar with small-diameter carbide tooling. Always secure the shank fully in the collet or chuck before operation, and verify runout is within acceptable tolerance before drilling. Carbide tooling is brittle compared to high-speed steel and should not be used in setups with excessive vibration or lateral loading. Do not exceed the rated maximum drilling depth of 0.7031 inches without retracting to clear chips.