Sgs 66619 Taper Length Drill Bit 4.3mm Solid Carbide

Product Description

The SGS 66619 is a taper length twist drill bit designed for precision drilling in a wide range of materials. Built from micrograin solid carbide and finished with a TX coating, this bit delivers extended tool life and consistent performance in demanding applications. The 135-degree split point geometry reduces walking and lowers thrust force at entry. With a 4.3 mm diameter, a 1-11/16 inch flute length, and an 81 mm overall length, this is a purpose-built tool for machinists and toolroom professionals requiring tight tolerances and repeatable results. The right-hand spiral flute and web-thinned point are optimized for clean chip evacuation.

The SGS 66619 Series 142P is rated for universal material application, making it suitable for use in steel, stainless steel, cast iron, aluminum, and similar workpiece materials. Coolant-through capability allows it to be run in CNC machining centers and drill presses equipped with through-spindle coolant delivery, extending tool life and improving hole finish in deep or difficult-to-machine materials. This bit is appropriate for production environments, job shops, and toolroom operations where consistent hole quality at small diameters is required.

Key Features

• Micrograin solid carbide construction for high wear resistance and rigidity
• TX coating for extended tool life and reduced friction
• 135-degree standard point with web thinning to reduce entry thrust and prevent walking
• Coolant-through design compatible with through-spindle coolant systems
• Right-hand spiral flute for efficient chip evacuation
• Cylindrical shank with 5.99 mm shank diameter for standard collet and chuck compatibility
• Conforms to DIN 6537 specification

Compatibility

Designed as an OEM-style replacement and general-use drill bit for CNC machining centers, drill presses, and manual machines accepting a cylindrical shank with a 5.99 mm shank diameter. Suitable for any setup supporting DIN 6537 taper length solid carbide drills.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Inspect the collet or chuck for wear and confirm proper runout before use. Follow the machine manufacturer and cutting tool manufacturer guidelines for speeds, feeds, and coolant pressure when running coolant-through tooling.