Hertel SD6560858 Step Drill Bit 10 Step Hss Hex Shank

Product Description

The HERTEL SD6560858 is a high-speed steel step drill bit designed to drill and deburr multiple hole sizes with a single tool. Built from M2 HSS with a black oxide finish, it covers 10 step sizes ranging from 3/16 inch up to 1-3/8 inches in 1/16-inch increments. The straight flute geometry and quick-change hex shank make it compatible with standard hex-drive chucks and quick-change driver systems. At 2-27/32 inches overall length and 0.44 pounds, it is sized for hands-on work in sheet metal, electrical panels, junction boxes, and light structural steel. HVAC techs, electricians, and plumbers reach for this bit when punching clean, step-sized holes through thin-gauge material.

This step drill bit is suited for general-purpose and multipurpose trade applications. Electricians use it to open knockout holes in enclosures and panel boxes. HVAC technicians use it when field-fabricating sheet metal connections or drilling through ductwork flanges. Plumbers use it to size holes in framing and light gauge materials. The 1/8-inch step length keeps each diameter transition controlled and reduces burr formation, cutting down on secondary finishing work.

Key Features

• M2 high-speed steel construction handles repeated use in sheet metal and thin steel
• Black oxide coating reduces friction and provides light corrosion resistance
• 10 step sizes from 3/16 to 1-3/8 inches in 1/16-inch increments
• Quick-change hex shank with one flat for secure chuck engagement
• Straight flute design with 1/8-inch step length for controlled, clean cuts
• Single tool replaces multiple standard twist bits for common trade hole sizes

Compatibility

Designed for use with standard hex-drive chucks and quick-change driver systems that accept a 7/16-inch hex shank. Suitable for general-purpose drilling in sheet metal, thin steel, aluminum, and similar thin-gauge materials.

Installation Notes

A licensed electrician, HVAC technician, or journeyman plumber typically installs or uses this bit as part of routine field work. Always disconnect power and de-energize any electrical panel or enclosure before drilling into it. Secure the workpiece before drilling to prevent rotation and use appropriate eye protection. Avoid forcing the bit through material thicker than the step length to prevent heat buildup and premature wear.