Unibit Cobalt Step Drill #1 - 1/8-1/2 In (1/32 In Steps) - Unibit

The Unibit 10231CB Cobalt Step Drill #1 is a professional-grade solution engineered for technicians and mechanics requiring precise, durable drilling in demanding materials. This versatile cobalt unibit, crafted from M35 grade cobalt high-speed steel, offers exceptional wear resistance and extended tool life for both automotive and industrial applications. It provides accurate, burr-free holes from 1/8 inch to 1/2 inch in 1/32 inch increments.

Key Features

• M35 Grade Cobalt HSS Construction: Delivers superior heat and abrasion resistance, significantly extending tool life, particularly when drilling through challenging materials like stainless steel.
• Radial Concave Flute Design: Facilitates rapid chip evacuation, minimizing material buildup and heat for cleaner cuts and prolonged bit performance.
• 3-Flatted Shank: Ensures a secure, non-slip grip in standard drill chucks, providing stability and preventing rotation during high-torque operations.
• Speedpoint™ Tip: Enables fast and precise drilling starts without the need for a pilot hole, improving efficiency and accuracy on the job.
• Laser-Marked Sizes: Offers clear and permanent size identification on each step, allowing for quick selection and verification.

Applications

This robust step drill excels in a broad spectrum of professional drilling tasks. It performs effectively in hard materials such as stainless steel, mild steel, aluminum, copper, brass, and PVC pipe. Common uses include creating clean, precisely sized holes for wiring harnesses, plumbing lines, and fastener installations in automotive fabrication, HVAC system installations, electrical panel work, and general industrial maintenance and repair.

Specifications

• Drill Size Range: 1/8 inch to 1/2 inch
• Step Increments: 1/32 inch
• Total Steps: 13