Mitsubishi 663226 Extra Length Carbide Drill Bit 0.2812 in

Product Description

The MITSUBISHI 663226 is a solid carbide extra length drill bit designed for high-performance drilling in demanding industrial and metalworking applications. It carries a TiAlN coating to extend tool life under heat and abrasion, making it well suited for dry or minimum-quantity lubrication (MQL) operations. The bit measures 0.2812 inches (9/32 inches) in diameter with an overall length of 5.642 inches and a flute length of 3.319 inches. The 140-degree split point with X-thinning geometry reduces entry force and improves hole entry accuracy. Coolant-through capability allows internal delivery of cutting fluid directly to the cutting zone. This is a tool installed and operated by machinists and tool-and-die professionals in CNC and manual drill press environments.

The 663226 belongs to the MVS Series and is built for cross hole drilling, stack drilling, and standard through-hole drilling operations. Its 8xD flute-to-diameter ratio and maximum drilling depth of 2.301 inches make it appropriate for medium-to-deep hole applications in production environments. The right-hand helical flute with parallel web and X-thinned web configuration supports chip evacuation in interrupted cuts and multi-layer stack setups. The cylindrical shank diameter of 0.315 inches fits standard drill chucks and collet-style toolholders used in CNC machining centers and manual equipment.

Key Features

• TiAlN coating for extended tool life in high-heat cutting operations
• 140-degree drill point angle with X-thinning for reduced thrust force and accurate hole entry
• Coolant-through design for internal cutting fluid delivery at the tip
• 8xD flute ratio supports drilling depths up to 2.301 inches
• Right-hand helical flute with parallel web for consistent chip evacuation
• Cylindrical shank at 0.315 inches diameter for broad toolholder compatibility

Compatibility

Rated for use in steel, stainless steel, superalloys, titanium, structural steel, tempered steel, iron, hardened steel, copper, cast iron, carbon steel, bronze, brass, aluminum, and aluminum alloy workpiece materials. ISO specification designation. Suitable for cross hole, stack drilling, and standard drilling operations per supplier data.

Installation Notes

Installation and setup should be performed by a qualified machinist or tooling technician. Power down and de-energize the machine spindle before inserting or removing the drill bit from the toolholder or chuck. Verify shank seating and runout before beginning a cut, as misalignment accelerates tool wear and reduces hole quality. Follow the machine manufacturer and tooling manufacturer feeds-and-speeds recommendations for the workpiece material being drilled.