Freud DHS1125CT Carbide Tipped Hole Saw 1-1/8 Inches

Product Description

The FREUD DHS1125CT is a 1-1/8 inch carbide-tipped hole saw designed for cutting through wood, nail-embedded wood, plastic, aluminum, metal, cast iron, and stainless steel in a single tool. The carbide tip construction delivers longer cutting life compared to standard bi-metal hole saws, making it a practical choice for tradespeople who push through varied materials on the same job. The 2-3/8 inch cutting depth allows 40 percent deeper holes in a single pass, reducing the need for repositioning or multiple passes. Licensed electricians, plumbers, HVAC techs, and general contractors reach for this saw when boring clean, accurate holes through mixed-material assemblies.

This hole saw is built for both residential and light commercial applications where a single tool needs to handle multiple substrate types without swapping out equipment. Typical use cases include running conduit, piping, and duct penetrations through wood framing, metal studs, and cast iron. The Snap Lock Plus mandrel system allows quick changes with no downtime on the job site. The included mandrel and pilot bit are ready for immediate use out of the package.

Key Features

• Carbide-tipped construction for longer cutting life than bi-metal hole saws
• 2-3/8 inch cutting depth delivers 40 percent deeper holes in a single pass
• Variable tooth design for faster, cleaner cuts across multiple materials
• Snap Lock Plus mandrel system enables tool-free, quick-change swaps with no downtime
• Tool-free plug ejection for fast material removal after each cut
• Cuts wood, nail-embedded wood, plastic, aluminum, metal, cast iron, and stainless steel

Compatibility

The included 1 Size Fits All mandrel is compatible with all Diablo hole saws in the carbide and bi-metal range from 5/8 inches to 6 inches in diameter. The 5/8 inch threaded adapter fits diameters 1-1/4 inches to 6 inches, and the 1/2 inch threaded adapter fits diameters 9/16 inches to 3-1/16 inches.

Installation Notes

Installation is performed by licensed electricians, plumbers, or HVAC technicians as part of penetration and rough-in work. Before boring through any surface, confirm no live electrical conductors, pressurized lines, or structural members are present behind the cut zone. Use appropriate RPM settings for the material being cut — harder metals require slower speeds and may benefit from cutting fluid. Secure the workpiece before drilling and allow the pilot bit to establish the cut center before applying full feed pressure.