ANSI M35 (H.S.S. + 5% Cobalt) Drill, with Silver & Deming shank, Gold and black oxide coating for corrosion resistance. 9/16'' Cutting Diameter; 1/2'' Shank Diameter; Straight shank with 3-Equal-flats to fit 1/2" chucks 6" overall length with 3" flute length; With aggressive 135° split points, these cobalt drills bits not only last longer while drilling but also cut faster than standard high-speed steel bits. It's ideal for drilling cast iron, heat-treated steel, stainless steel and other hard materials. High-Quality M35 H.S.S. + 5% Cobalt: Designed for enhanced durability and superior heat resistance, suitable for drilling hard materials. 135° Split Point for Efficiency: Sharp, precise tip reduces drill bit walking and eliminates the need for a pilot hole, improving accuracy. 1/2" Shank with 3-Equal-Flats: Ensures a strong grip in 1/2" chucks, preventing slippage for reliable, consistent drilling performance. Optimal Length and Flute Design: 6" total length with a 3" flute length provides a balanced approach to reach and power in drilling tasks. 9/16" Drill Bit Size: Ideal for versatile drilling applications, from DIY projects to industrial manufacturing tasks.

The Accusize Industrial Tools 9/16'' ANSI M35 S and D Drill (0412-0916) is meticulously engineered for precision and longevity. Crafted from high-speed steel with an addition of 5% cobalt (M35 H.S.S. + 5% Cobalt), this drill bit is designed to withstand the rigors of drilling into hard materials, ensuring long-term use without losing its edge. The cobalt alloy enhances the bit's heat resistance and durability, making it an ideal choice for high-temperature drilling operations.

Featuring a 135° split point tip, the drill bit is optimized for efficient drilling. This design minimizes the need for a pilot hole and significantly reduces bit walking on the surface, ensuring accurate, clean holes from the start. The aggressive point angle allows for faster drilling speeds, reducing the time and effort needed to penetrate tough materials like cast iron, heat-treated steel, and stainless steel.

The 1/2" shank of this drill bit is uniquely designed with three equal flats to fit securely in 1/2" chucks, preventing slippage and ensuring a reliable grip for optimal power transfer. This feature is particularly beneficial during high-torque drilling operations, where precision and control are paramount.

With an overall length of 6 inches and a flute length of 3 inches, the drill bit offers a balanced approach to drilling, providing ample reach for deeper drilling tasks while maintaining the structural integrity needed for effective performance. The 9/16" size of the drill bit adds to its versatility, making it suitable for a wide range of drilling applications, from DIY projects to professional manufacturing tasks.