Sgs 66634 Taper Length Drill Bit 31/64 in Solid Carbide

Product Description

The SGS 66634 is a taper length drill bit engineered for high-performance drilling across a wide range of materials. Built from micrograin solid carbide and finished with a Ti-NAMITE-X (TX) coating, this bit delivers superior wear resistance and heat management at the cutting edge. It features a 135-degree split point for fast penetration and reduced walking on entry. The 31/64-inch diameter, right-hand spiral flute design and cylindrical shank make it compatible with standard drill chucks and CNC toolholders. Coolant-through capability supports high-speed machining applications where chip evacuation and thermal control are critical.

The SGS 66634 is suited for production and job shop environments where extended tool life and tight hole tolerances are required. The 8xD flute-to-diameter ratio and taper length body give it reach for deeper holes without sacrificing rigidity. With a web-thinned point and DIN 6537 specification compliance, this bit is appropriate for aerospace, automotive, die-and-mold, and general metalworking applications. It is typically run by machinists and CNC operators on vertical machining centers, drill presses, and multi-axis platforms.

Key Features

• Micrograin solid carbide construction for extended tool life in demanding materials
• Ti-NAMITE-X coating reduces friction and improves heat resistance at the cutting edge
• 135-degree split point minimizes walking and reduces thrust force on entry
• Coolant-through design supports high-speed, deep-hole drilling with effective chip evacuation
• Web-thinned geometry lowers cutting forces and improves chip flow
• DIN 6537 specification compliance ensures dimensional consistency for precision applications

Compatibility

Designed as a direct-fit taper length drill bit for use in standard straight-shank toolholders, drill chucks, and collet systems accepting a 31/64-inch cylindrical shank. Universal material application rating per manufacturer specifications.

Installation Notes

Installation and setup should be performed by a qualified machinist or CNC operator familiar with carbide tooling. Ensure the spindle and toolholder are clean and free of debris before seating the shank to maintain runout tolerance. Carbide tooling is brittle — avoid side-loading or using the bit as a reamer. Follow machine manufacturer guidelines for spindle speed, feed rate, and coolant pressure when running coolant-through applications.