Sgs 66622 Taper Length Drill Bit 3/4 in Solid Carbide

Product Description

The SGS 66622 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 TX coating, this bit delivers extended tool life and heat resistance in demanding applications. It features a 135-degree split point for accurate self-centering starts and reduced thrust. The 3/4-inch diameter bit has a flute length of 7-31/64 inches and an overall length of 9-9/16 inches. Coolant-through capability supports high-speed, deep-hole drilling operations where chip evacuation and thermal management are critical. Right-hand spiral flutes with web thinning improve chip flow and reduce walking at entry.

The SGS 66622 is suited for production drilling in machine shop, fabrication, and toolroom environments. Its universal material application rating makes it appropriate for use in steel, stainless steel, cast iron, aluminum, and similar workpiece materials. The cylindrical shank is compatible with standard drill chucks and collet systems. The 8xD flute-to-diameter ratio classifies this as a taper length format, offering greater reach than jobber-length bits while maintaining rigidity. Typical users include machinists, tool-and-die makers, and maintenance professionals running CNC machining centers or manual drill presses.

Key Features

• Micrograin solid carbide construction for high wear resistance and dimensional stability
• TX coating reduces friction and extends cutting edge life
• 135-degree point angle with web thinning for self-centering entry and reduced axial thrust
• Coolant-through design supports chip evacuation in deep-hole drilling
• Right-hand spiral flute with regular spiral type for consistent chip flow
• Conforms to DIN 6537 specification for standardized geometry and tolerances

Compatibility

Designed as an OEM-style replacement and production drill bit for use in standard drill chucks and collet tool holders accepting a cylindrical shank in CNC and manual drilling applications.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or toolroom personnel familiar with carbide tooling. Ensure the spindle and tool holder are fully de-energized and secured before loading or removing the bit. Carbide tooling is brittle and should not be subjected to side loads, interrupted cuts outside its rated parameters, or impact from drops. Verify runout and tool holder concentricity before beginning a drilling cycle to avoid premature chipping or breakage.