8 Piece S&D 1/2" Reduced Shank - KnKut

The KnKut 8KK12 8 Piece S&D 1/2" Reduced Shank Drill Bit Set is engineered for professional technicians and mechanics who require robust drilling performance in demanding automotive and industrial applications. This premium set features a range of larger diameter drill bits, each meticulously crafted to fit standard 1/2-inch drill chucks thanks to its reduced shank design. It is particularly effective for drilling tough materials such as stainless steel, cast iron, aluminum, and other hard metals found in vehicle components and industrial machinery.

Key Features

• Professional-Grade Construction: Manufactured by KnKut in the USA, these drills are made from high-grade Molybdenum High-Speed Steel (HSS) with a high vanadium content, ensuring superior durability and edge retention.
• Reduced Shank Design: Each bit features a 1/2-inch reduced shank with three machined flats, allowing larger diameter bits (from 9/16" to 1") to be securely used in standard 1/2-inch drill chucks without slippage.
• 135-Degree Split Point Tip: The precision-ground 135-degree split point enables fast penetration and accurate starting without the need for a center punch or pilot hole, reducing bit walking and improving hole quality.
• Advanced Surface Treatment: The drills are salt nitride treated to penetrate the tool's surface for increased hardness and resistance to drilling temperatures, while a gold surface treatment provides maximum lubricity to minimize friction and heat during drilling.
• Precision Ground: Precision ground point, flutes, body clearance, and drill diameter ensure ultimate accuracy and performance with efficient chip evacuation.

Applications

This versatile drill bit set is ideal for a broad spectrum of drilling tasks in both automotive and industrial environments. It excels in creating precise holes in challenging materials such as work-hardened stainless steel, cast iron, and various alloys commonly encountered in vehicle chassis, engine repairs, and machinery fabrication. It is suitable for tasks like enlarging existing holes, creating new bolt holes, and general maintenance work where larger diameter holes are required but only a standard 1/2-inch drill chuck is available.

Specifications

• Manufacturer: KnKut
• Model Number: 8KK12
• Product Name: 8 Piece S&D 1/2" Reduced Shank
• Set Pieces: 8
• Sizes Included: One piece each of 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", and 1 INCH.
• Shank Diameter: 1/2 inch (reduced)
• Point Angle: 135 degrees
• Material: High-grade Molybdenum High-Speed Steel with high vanadium content
• Country of Origin: USA