Hertel SD6560650 Step Drill Bit 12-step Hss Hex Shank

Product Description

The HERTEL SD6560650 is a 12-step high-speed steel step drill bit designed for drilling multiple hole sizes with a single tool. Built from M2 HSS with a black oxide finish, it cuts through sheet metal, thin plate, and similar materials in a single operation. The hex shank with one flat provides positive grip in quick-change chuck systems. Steps increment in 1/16-inch intervals from 3/16 inch up to 7/8 inch, covering 12 discrete hole sizes. The concave flute geometry helps clear chips and reduce heat buildup during drilling. Overall length is 2-5/8 inches. This bit is a standard tool for electricians, HVAC technicians, plumbers, and sheet metal workers who need precise, clean holes in thin material.

This step drill bit is suited for general-purpose multipurpose applications including electrical box knockouts, sheet metal fabrication, conduit entry points, and HVAC equipment panels. The 1/8-inch step length and 1/16-inch increment spacing allow controlled, incremental sizing without repositioning the workpiece. The 3/8-inch hex shank is compatible with standard quick-change drill systems and most 3/8-inch or larger cordless and corded drills. Weight is 0.17 pounds, making it easy to carry on the job.

Key Features

• 12 hole sizes in a single bit: 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, and 7/8 inch
• M2 high-speed steel construction for durability in general-purpose drilling
• Black oxide coating reduces friction and provides basic corrosion resistance
• Concave flute design aids chip evacuation during use
• Hex shank with one flat for secure seating in quick-change systems
• 1/16-inch step increments allow precise hole sizing without tool changes

Compatibility

Designed for use with quick-change chuck systems accepting a 3/8-inch hex shank. Suitable for drilling thin sheet metal, aluminum, plastic, and similar materials in electrical, HVAC, plumbing, and general sheet metal applications.

Installation Notes

Always secure the workpiece before drilling to prevent spinning or shifting. Use cutting fluid or lubricant when drilling ferrous metals to extend bit life and reduce heat. Center-punch the target location before starting to prevent walking on smooth surfaces. This bit is not rated for thick stock or hardened materials — use it within its intended application range for safe results.