L H Dottie Co CT20 Carbide Tipped Hole Cutter 1-1/4 in

Product Description

The L H Dottie CO CT20 is a carbide tipped hole cutter designed for cutting clean, precise holes in sheet metal, electrical enclosures, and similar trade applications. The carbide tip maintains cutting edge integrity through repeated use on hard materials where standard bi-metal cutters wear prematurely. This tool is sold as a single unit and is sized at 1-1/4 inches, making it a common choice for conduit knockouts and panel entry points. Electricians, HVAC technicians, and sheet metal workers keep this size on hand for standard trade rough-in work.

The CT20 is suited for residential and light commercial electrical and HVAC installations where 1-1/4-inch knockouts or penetrations are required. It is commonly used when working with electrical panels, junction boxes, and equipment enclosures. The single-piece unit is straightforward to deploy with a standard arbor-style hole cutter driver or compatible mandrel setup on a power drill or drill press.

Key Features

• Carbide tipped cutting edge for extended tool life on hard materials
• 1-1/4-inch cut diameter suited for standard conduit and knockout applications
• Sold as a single unit — no multi-pack minimum required
• Compact design compatible with standard arbor-driven hole cutter setups

Compatibility

Designed as an OEM-style replacement and general-use hole cutter for standard arbor-driven hole cutter systems used in electrical and HVAC trade applications.

Installation Notes

Installation is typically performed by licensed electricians or HVAC technicians. Always de-energize and lock out electrical panels or equipment before cutting knockouts or entry holes. Use appropriate eye protection and secure the workpiece before beginning the cut. Refer to NEC guidelines when determining knockout size and placement for conduit entries.