Hertel SD6560809 Step Drill Bit 8-size 9/16-1 in Hex Shank

Product Description

The HERTEL SD6560809 is a 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 covers 8 hole sizes ranging from 9/16 inch to 1 inch in 1/16-inch increments, making it a practical choice for sheet metal, electrical panels, and general multipurpose drilling. The quick-change hex shank fits standard 7/16-inch hex chuck drivers, eliminating the need for a separate chuck swap. At 2 inches overall length and 0.22 pounds, it is a compact, lightweight bit suited for tight spaces and field service work.

This step drill bit is suited for general-purpose and multipurpose applications across residential and light commercial job sites. Electricians and HVAC technicians commonly reach for step bits when punching knockout holes in electrical enclosures, junction boxes, ductwork, and sheet metal panels. The straight flute geometry and black oxide coating help reduce heat buildup during use and provide light lubricity on mild steel and aluminum. Each step is 1/8 inch long, providing a defined stopping ledge for clean, burr-minimized holes.

Key Features

• 8 hole sizes from 9/16 inch to 1 inch in 1/16-inch step increments
• M2 high-speed steel construction for durability on steel and aluminum
• Black oxide coating for reduced friction and light corrosion resistance
• 7/16-inch hex shank with quick-change design for fast driver compatibility
• Straight flute geometry for general-purpose multipurpose drilling
• Compact 2-inch overall length suited for confined work areas

Compatibility

Designed as a general-purpose replacement or addition for trade professionals requiring step drill coverage from 9/16 inch through 1 inch. Compatible with any drill or driver accepting a standard 7/16-inch hex shank quick-change bit holder.

Installation Notes

This bit is installed and used by electricians, HVAC technicians, and plumbers for hole-making in thin-gauge metal materials. Secure the bit firmly in a 7/16-inch hex chuck or quick-change driver before use. Apply cutting oil when drilling steel to extend tool life and reduce heat. Wear appropriate eye protection and secure workpieces to prevent movement during drilling.