Osg 8694320 Taper Length Drill Bit 0.1260 in Solid Carbide

Product Description

The OSG 8694320 is a taper length solid carbide drill bit designed for precision drilling in demanding industrial and machining applications. Built from solid carbide, this bit delivers superior hardness and heat resistance compared to high-speed steel alternatives. It features a 140-degree split point for reduced walking and improved hole entry, a spiral flute configuration for efficient chip evacuation, and an EgiAs coating to extend tool life. The straight shank provides secure chuck holding. Coolant-through capability supports high-speed operation in difficult materials. Machinists and tool-and-die professionals specify this bit for production drilling where dimensional accuracy and tool longevity matter.

This bit is suited for use in CNC machining centers, drill presses, and manual mills where taper length reach is required beyond standard jobber length. The 8xD flute-to-diameter ratio makes it appropriate for deeper hole applications without sacrificing rigidity. The X-Thinned web reduces thrust requirements and improves chip flow. Compatible with straight-shank toolholders and collet chucks accepting a 4.00 mm shank diameter. Typical applications include ferrous and non-ferrous metals, aerospace alloys, and hardened materials where solid carbide construction is specified over coated steel alternatives.

Key Features

• Solid carbide construction for high hardness and thermal resistance
• 140-degree point angle reduces drill walking and improves entry accuracy
• EgiAs coating extends tool life in abrasive and high-temperature cutting conditions
• Coolant-through design supports high-speed and deep-hole drilling
• X-Thinned web lowers thrust requirements and improves chip evacuation
• 8xD flute-to-diameter ratio provides extended reach for deeper holes

Compatibility

Designed for use in straight-shank toolholders and collet chucks accepting a 4.00 mm shank diameter; suitable as an OEM-style replacement or new tooling for CNC and manual drilling setups requiring a 0.1260 inch diameter taper length carbide drill.

Installation Notes

Installation and tool changes should be performed by qualified machinists with the machine powered down and locked out per applicable safety procedures. Verify chuck or collet size matches the 4.00 mm straight shank before seating the bit. When using coolant-through capability, confirm the spindle and toolholder are configured to supply coolant to the tool. Inspect the cutting edges for chipping or wear before each use, as solid carbide is brittle and susceptible to damage from improper handling or interrupted cuts.