Optimized Title: IRWIN 29-Piece M35 Cobalt Alloy Drill Bit Set (3018002)

The 29-Piece Cobalt M-35 Metal Index Drill Bit Set from IRWIN Tools is designed for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. The drill bits are made from industrial-grade High-speed steel, ensuring increased durability and long-lasting performance.

The 8% Cobalt Alloy Steel alloy used in the construction of these drill bits is heat and abrasion-resistant, providing enhanced durability and extended tool life. The 135-degree split-point tip starts drilling immediately with less force, eliminating the risk of "walking" across the work surface.

The set includes drill bit sizes ranging from 1/16 to 1/2 inch in 1/64-inch increments, allowing for precise and versatile drilling. The metal index case provides easy bit access and identification, making it convenient to select the appropriate size for the job.

The heavy-duty web construction of the drill bits ensures strength and durability, while the cobalt steel extends the life of the cutting edges. The reduced shank above the 3/8-inch point allows for the use of larger drill bits in a 3/8-inch chuck, providing greater flexibility in drilling applications.

The set's rubber overmolded case protects the drill bits from damage due to accidental dropping, and the removable cartridges make it easy to transport the necessary bits from the case to the worksite.

In summary, the IRWIN Tools Cobalt Alloy Steel High-Speed Steel Drill Bit, 29-Piece Metal Index Set (3018002) is an excellent choice for professionals and DIY enthusiasts who require a durable and reliable set of drill bits for a wide range of metal-drilling tasks, from light-duty to heavy-duty applications.

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