Cobalt Complete Drill Index Set - 115 Piece - Brown Aviation Tool

The Brown Aviation Tool 115-COB Cobalt Complete Drill Index Set provides professional technicians with a comprehensive 115-piece assortment engineered for demanding drilling applications. This professional-grade cobalt drill index is crafted from cobalt high-speed steel, specifically designed to deliver consistent performance in challenging materials like stainless steel, high-strength alloys, and cast iron, making it an essential asset for maintenance, repair, and overhaul (MRO) operations.

Key Features

• Cobalt High-Speed Steel Construction: Engineered for enhanced heat resistance and extended wear life, crucial when drilling through tough materials such as stainless steel, hardened alloys, and cast iron.
• Comprehensive 115-Piece Assortment: Includes a full range of fractional (1/16" to 1/2" in 64ths), letter (A-Z), and number (#1 to #60) sizes, ensuring a precise drill bit for diverse professional tasks and minimizing the need for multiple drill sets.
• Precision Ground Flutes: Designed to facilitate clean cutting, accurate size control, and efficient chip evacuation, which helps protect both the drills and power tools from overload during demanding work.
• Heavy-Duty Metal Index Box: A rigid, clearly labeled steel case ensures drills remain organized and readily accessible, enhancing efficiency whether on a workbench or in a service vehicle.

Applications

This cobalt drill index set is well-suited for professional automotive, aviation, and industrial maintenance, repair, and overhaul (MRO) operations. Common applications include drilling bracketry, exhaust components, suspension hardware, and frame work on passenger vehicles, light trucks, and fleet vehicles. It is a practical choice for fabrication shops, fleet maintenance, and aerospace MRO for tasks involving sheet metal, structural repairs, and panel work. The durability of this cobalt drill set makes it effective for working with stainless fasteners, removing hardened hardware, and creating accurate holes in high-strength materials.