Sgs 66645 Taper Length Drill Bit 11/32 in Solid Carbide

Product Description

The SGS 66645 is a taper length twist drill bit built for high-performance drilling in demanding applications. Manufactured from micrograin solid carbide and coated with Ti-NAMITE-X (TX), this bit delivers superior wear resistance and heat dissipation compared to standard HSS tooling. It measures 11/32 inches in diameter with a 135-degree split point and a spiral flute design. Overall length is 5-19/32 inches, with a flute length-to-diameter ratio of 8xD. The web-thinned point reduces thrust force at entry, making it well suited for precise, consistent hole starts. Coolant-through construction supports high-speed machining cycles. This bit is installed by machinists and tool-and-die professionals in production and maintenance environments.

Designed for universal material application, the SGS 66645 performs across a broad range of workpiece materials including steel, stainless steel, cast iron, and non-ferrous alloys. The straight cylindrical shank fits standard drill chucks and collet holders. Its DIN 6537 specification ensures dimensional compliance with metric and inch tooling systems. Typical use cases include precision hole-making in CNC machining centers, drill presses, and manual lathes where consistent diameter tolerance and hole quality are required.

Key Features

• Micrograin solid carbide substrate with Ti-NAMITE-X coating for extended tool life
• 135-degree split point reduces thrust and improves self-centering on entry
• Web-thinned geometry lowers cutting forces and chip packing risk
• Coolant-through design supports high-speed and deep-hole drilling cycles
• 8xD flute-length-to-diameter ratio provides taper length reach
• DIN 6537 specification ensures dimensional interchangeability with compliant tooling systems

Compatibility

Designed as an OEM-style replacement and general-purpose taper length drill bit compatible with standard straight cylindrical shank drill chucks and collet holders used in CNC machining centers and conventional drill presses.

Installation Notes

Installation is performed by machinists and tooling technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify chuck or collet runout is within acceptable limits before seating the shank, as excessive runout will accelerate wear on carbide tooling. Follow the machine manufacturer and applicable shop safety guidelines when setting feed rates and spindle speeds for carbide drills.