Sgs 51004 Solid Carbide Jobber Drill Bit No. 4 Wire

Product Description

The SGS 51004 is a solid carbide jobber-length drill bit ground to a 118-degree faceted point and designed for precision drilling in metal, composites, and other hard materials. Built from micrograin solid carbide, this bit delivers consistent dimensional accuracy with a diameter tolerance of -0.0005 to 0.0000 inches. At 3 inches overall length with a 1.75-inch spiral flute, it fits standard drill chucks and CNC setups without modification. The straight-cylindrical shank seats securely in collets and keyless chucks. Web thinning reduces thrust requirements and improves chip evacuation at the cutting edge. Machinists, tool-and-die makers, and maintenance technicians install this bit in production and job-shop environments.

The SGS 51004 is suited for drilling wire-gauge No. 4 holes (0.209 inches, 5.31 mm) in applications where dimensional precision and hole quality are critical. The two-flute right-hand spiral geometry handles a wide range of work materials common in metalworking and fabrication. With a maximum drilling depth of 1.4062 inches and a 5xD flute-to-diameter ratio, this bit is well matched to through-holes and moderate-depth blind holes in production runs or repair work. It conforms to DIN 338 standards, making it a drop-in fit wherever that specification is required.

Key Features

• Micrograin solid carbide construction for extended tool life in hard and abrasive materials
• 118-degree faceted point with web thinning for reduced thrust and cleaner entry
• Bright/uncoated finish suitable for use with cutting fluids or dry cutting where coating is not required
• Straight-cylindrical shank compatible with standard collets, chucks, and CNC toolholders
• Conforms to DIN 338 standard for consistent dimensional interchangeability
• Right-hand cut, two-flute spiral geometry promotes efficient chip removal

Compatibility

Designed as a DIN 338-compliant jobber drill for use in manual drill presses, CNC machining centers, and handheld power tools with a straight-cylindrical collet or chuck capable of holding a 0.209-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with carbide tooling handling. Solid carbide bits are brittle and should never be used in flex-shaft or impact-driver applications. Secure the shank fully within the collet or chuck to the recommended engagement depth before operation. Apply appropriate cutting fluid for the work material to extend tool life and maintain hole quality.