21 Piece Drill Set-Jobber Cobalt

135° Split Point Cobalt Steel Drill Bits – Precision for Industrial and Aerospace Applications

These 135° Split Point Cobalt Steel Drill Bits are designed for accuracy and high-performance drilling. Manufactured from industrial-grade NAS cobalt steel (HSCO), these bits are precision CNC-machined to improve chip evacuation and reduce end load pressure, making them ideal for heavy-duty industrial use. The 135° split point tip provides superior control, penetrating surfaces with ease while preventing bit “walking.” These drill bits are ideal for high-temperature applications and come neatly organised in a heavy-duty metal index case.

Key Features:

• Fractional sizes available from 1/16″ up to 3/8″
• 135° split point tip for superior accuracy and control, preventing drill bit “walking”
• Industrial-grade NAS cobalt steel (HSCO) construction for durability and high-temperature performance
• Precision CNC machining for improved chip evacuation and reduced end load pressure
• Heavy-duty metal index case with numbered metal tip-out indexes for easy organisation

Material Applications:

• Aluminium, copper, cast iron, low and medium carbon steel, steel alloy, stainless steel, strength alloys, plastic

Why Choose William Lees & Sons?

For over 30 years, William Lees & Sons has supplied top-quality and competitively priced aircraft and sheet metal tools. We are proud distributors of brands like US Industrial Tool, Sioux Tools, and HS Tooling (Hi-Shear), with products trusted by major aerospace companies including Airbus, BAE Systems, and British Airways.

Worldwide Shipping Available

We provide fast and reliable worldwide shipping through our own couriers or third-party providers. Contact us for more details or combine items to reduce shipping costs.