3 Piece Unibit HSS and Cobalt Set (#1, #4 & #2) - Vise-Grip

The Vise-Grip 15506SM Unibit Set provides professional technicians and mechanics with a versatile drilling solution for expanding holes in sheet metal and other thin materials. This three-piece set includes two high-speed steel (HSS) Unibits and one M35 grade cobalt Unibit, engineered for precision and extended tool life in demanding applications. Designed for clean, burr-free holes, this set is an essential addition to any professional toolkit.

Key Features

• Dual Material Construction: Includes #1 and #4 Unibits crafted from durable high-speed steel (HSS) for general applications, alongside an M35 grade cobalt #2 Unibit for enhanced heat resistance and extended life when drilling harder materials like stainless steel.
• 3-Flatted Shanks: Engineered with three flats on the shank, these Unibits ensure a secure grip in drill chucks, preventing slippage under high torque conditions and enhancing operational safety.
• Speedpoint Tip: Each Unibit features a Speedpoint tip for fast, clean starts, eliminating the need for a pilot hole and reducing walk-off on smooth surfaces.
• Laser Marked Sizes: Clearly laser-marked increments allow for quick and accurate identification of hole sizes, streamlining workflow and reducing potential errors.
• Professional Grade Durability: Manufactured to Vise-Grip's exacting standards, these Unibits are built to withstand the rigors of daily professional use in automotive and industrial environments.

Applications

This Vise-Grip Unibit set is ideal for a wide range of automotive and industrial tasks requiring precise hole enlargement or creation in thin materials. Common applications include electrical panel fabrication, automotive bodywork, drilling through chassis components, installing custom accessories, and modifying HVAC ductwork. The cobalt Unibit is particularly suited for drilling in tougher metals often found in vehicle frames or industrial machinery.