Sgs 51068 Solid Carbide Jobber Drill Bit Wire Size 68

Product Description

The SGS 51068 is a solid carbide jobber-length drill bit designed for precision drilling in composite materials. Built from micrograin solid carbide with a bright uncoated finish, it delivers consistent hole quality in demanding applications where standard high-speed steel bits fall short. The 118-degree faceted point angle provides clean entry and accurate positioning, while the web-thinned, tapered web design reduces thrust and improves chip evacuation. At 1.25 inches overall length with a 0.5-inch spiral flute, this is a short, rigid tool suited for controlled, close-tolerance work where deflection must be minimized.

This drill bit is sized to wire gauge 68, equal to 0.031 inches (0.79 mm) in decimal and metric equivalents. It is primarily specified for composite workpieces, including carbon fiber reinforced polymer, fiberglass, and similar laminate materials common in aerospace, electronics, and specialty fabrication. The straight-cylindrical shank and compact 1.25-inch OAL make it compatible with standard drill chucks and collet holders used in CNC drilling centers, drill presses, and precision hand tools. It conforms to DIN 338 standards and carries a 5xD flute-by-diameter ratio appropriate for shallow-to-moderate depth holes.

Key Features

• Micrograin solid carbide construction for wear resistance in abrasive composite materials
• 118-degree faceted point with web thinning for reduced entry thrust and accurate positioning
• Wire size 68 - 0.031 inches (0.79 mm) decimal equivalent
• Bright uncoated finish; no coating to alter critical diameter tolerance
• Right-hand cut, regular spiral flute for standard chip evacuation
• Conforms to DIN 338; straight-cylindrical shank fits standard chucks and collets

Compatibility

Designed as an OEM-style jobber drill bit for use in CNC drilling centers, drill presses, and precision hand-tool setups that accept a straight-cylindrical shank in the 0.031-inch diameter range.

Installation Notes

Installation and operation of this drill bit should be performed by machinists or trade professionals familiar with precision drilling in composite substrates. Secure the straight shank fully in a calibrated chuck or collet before operation to prevent runout. When drilling composites, use appropriate backing material to reduce delamination at breakthrough. Inspect the cutting edges before each use - carbide at this diameter is brittle and susceptible to edge chipping if dropped or improperly stored.