Mitsubishi 10543467 Carbide Drill Bit 0.125 in 140 Deg

Product Description

The MITSUBISHI 10543467 is a solid carbide extra-length drill bit designed for demanding deep-hole, cross-hole, and stack drilling applications. Built to the MVS series specification, it carries a TiAlN coating that extends tool life in high-heat cutting conditions. The drill measures 0.1250 inches in diameter with a 140-degree split point featuring X-thinning geometry, which reduces entry thrust and improves centering accuracy. Overall length is 4.5110 inches with a 2.5040-inch helical flute and a maximum drilling depth of 1.8990 inches. A cylindrical shank at 0.2362 inches diameter ensures secure chuck engagement. This bit is sold individually and weighs 0.04 pounds.

This drill bit is suited for machining alloy steel, carbon steel, tempered steel, hardened steel, stainless steel, cast iron, copper, brass, bronze, high-strength bronze, nickel, nickel alloys, superalloys, titanium, and structural steel. The 15xD flute-to-diameter ratio makes it a practical choice for through-hole production work, cross-hole intersections, and multi-layer stack drilling where standard-length bits cannot reach. It is rated for high-performance and high-precision grade applications and is appropriate for CNC machining centers and manual drill press operations requiring tight tolerances.

Key Features

• 0.1250-inch cutting diameter with 140-degree X-thinned drill point for reduced entry thrust
• TiAlN coating for extended tool life in high-temperature and abrasive cutting environments
• Helical, right-hand flute configuration with 2.5040-inch flute length for efficient chip evacuation
• Coolant-through design supports internal coolant delivery for deep-hole operations
• 15xD flute-by-diameter ratio enables deep-hole and stack drilling beyond standard reach
• ISO specification designation; compatible with alloy steel, stainless steel, titanium, superalloys, and a broad range of ferrous and non-ferrous materials

Compatibility

Designed for deep hole drilling, cross-hole drilling, and stack drilling applications in alloy steel, carbon steel, tempered steel, hardened steel, stainless steel, cast iron, copper, brass, bronze, nickel alloys, superalloys, titanium, and structural steel workpieces as specified by the manufacturer.

Installation Notes

Installation and operation should be performed by qualified machinists familiar with cutting tool setup and CNC or manual drilling equipment. Secure the cylindrical shank in a properly sized collet or drill chuck rated for the shank diameter before beginning any operation. Disengage and lock out all machine power before changing tooling. Follow the machine tool manufacturer and applicable shop safety guidelines for cutting speeds, feed rates, and coolant flow when using coolant-through tooling.