Diablo Mandrel System DHSAR375 3/8 Inch Hex Shank Snap-Lock Plus (Fits 5/8 to 6 Inch Hole Saws Tool-Free Plug Ejection Deep Cut)

Diablo DHSAR375 3/8-Inch Hex Shank Snap-Lock Plus Mandrel System

The Diablo DHSAR375 3/8-Inch Hex Shank Snap-Lock Plus Mandrel System provides rapid, tool-free hole saw cup attachment and instant core plug ejection across hole saw diameters from 5/8 inch to 6 inches. Engineered to support single-pass drilling depths up to 2-3/8 inches (60 mm), this quick-change arbor eliminates stuck wood and metal plugs without requiring screwdrivers or knockout pins. The hardened steel 3/8-inch hex shank secures firmly into 3-jaw drill chucks to withstand high rotational torque during repetitive plumbing, electrical, and HVAC coring operations.

Best Used For:

• Electrical Rough-In Coring: Sizing conduit entries from 5/8 inch to 4 inches through steel junction enclosures and wood studs with rapid cup changes.
• Plumbing Pipe Pass-Throughs: Boring large-diameter drain and supply holes through 2x dimensional lumber up to 2-3/8 inches deep in a single pass.
• Competitor Cup Conversion: Adapting standard threaded non-Diablo hole saw cups to the Snap-Lock Plus quick-eject system using the included adapter nuts.

Key Performance & Safety Features

• Snap-Lock Plus Quick-Change Interface: Enables tool-free mounting, rapid cup swapping, and one-push core plug ejection to eliminate jobsite downtime.
• Deep 2-3/8-Inch Cut Support: Engineered to clear thick framing lumber, subfloors, and composite panels in a single pass.
• 3/8-Inch Hex Drive Shank: Fits standard 3/8-inch and 1/2-inch drill chucks, providing positive grip to prevent shank slippage under high load.
• Universal Thread Adapters: Includes 1/2-inch-20 and 5/8-inch-18 thread adapters to convert major competitive hole saw brands.
• Heavy-Duty Hardened Steel Body: Resists rotational shear stress, radial runout, and high torsional vibration during aggressive metal and wood cutting.

What's Included

• (1) Diablo DHSAR375 3/8-Inch Hex Shank Snap-Lock Plus Mandrel
• (1) 1/2-Inch Adapter Nut (Fits 5/8 in to 1-3/16 in Diameter Hole Saws)
• (1) 5/8-Inch Adapter Nut (Fits 1-1/4 in to 6 in Diameter Hole Saws)

Technical Specifications

Pro-Tip: To clear a stubborn wood plug, slide the Snap-Lock collar forward toward the drill chuck to pull the pilot bit back, popping the plug out of the hole saw instantly without prying.