Diablo Hole Saw Mandrel DHSAR500 7/16 Hex Shank Snap Lock Plus (Universal Quick Change Arbor 1/2 5/8 Thread Adapters Pilot Bit Kit)

Diablo DHSAR500 Snap-Lock Plus 7/16 Inch Hex Shank Hole Saw Mandrel Kit

The Diablo DHSAR500 is a 7/16-inch hex shank Snap-Lock Plus™ universal hole saw mandrel kit engineered to execute tool-free cup changes and rapid plug ejections across hole saws ranging from 5/8-inch to 6-inch diameters. Built with a quick-release collar mechanism and supporting up to a 2-3/8-inch cutting depth capacity, this heavy-duty arbor drive converts both Diablo and major third-party threaded hole saws into quick-change tools. Complete with a pilot drill bit and dual 1/2-inch and 5/8-inch thread adapter nuts, it mounts securely into 1/2-inch drill chucks to eliminate shank slippage and thread locking during high-torque wood and metal drilling operations.

Best Used For:

• Rapid Hole Saw Cup Swapping: Changing between various hole saw diameters from 5/8-inch to 6-inch without unchucking the mandrel or using hand wrenches.
• Third-Party Hole Saw Conversion: Adapting standard threaded 1/2-inch and 5/8-inch hole saw cups from competitor brands into tool-free quick-change cutting cups.
• Deep Core Plug Ejection: Clearing trapped wood, drywall, or metal cores instantly by sliding the collar mechanism back to push out material plugs.

Key Performance & Safety Features

• Snap-Lock Plus™ Quick-Release Mechanism: Enables instant, tool-free hole saw cup attachments and size changes to reduce jobsite downtime.
• Universal Hole Saw Compatibility: Fits all Diablo hole saws and major competitive brands spanning 5/8-inch to 6-inch cutting diameters.
• Tool-Free Plug Ejection System: Sliding drive collar activates quick core ejection to clear clogged material plugs without requiring screwdrivers.
• 7/16-Inch Heavy-Duty Hex Shank: Formed hex drive profile prevents chuck slippage in 1/2-inch drill chucks during high-torque applications.
• Threaded Adapter Nut Set: Includes 1/2-inch and 5/8-inch thread adapters to retrofit standard threaded hole saws to the quick-change platform.
• 2-3/8-Inch Cutting Depth Support: Drives deep-barrel hole saws for single-pass penetrations through 2x lumber and multi-layered substrates.

What's Included

• (1) 7/16" Hex Shank Mandrel
• (1) Pilot Bit
• (1) 1/2" Thread Adapter Nut
• (1) 5/8" Thread Adapter Nut

Technical Specifications

Pro-Tip: To clear a stubborn wood plug instantly without tools, retract the Snap-Lock collar while pulling the hole saw cup downward along the pilot bit to let the integral mechanism push the core straight out.