Diablo Hole Saw Adapter Nut DHSNUT2 Snap Lock Plus (9/16 to 6 Inch Universal Bi-Metal Mandrel Conversion Set 1/2 and 5/8 Thread 2 Pack)

Diablo DHSNUT2 Snap-Lock Plus Universal Hole Saw Adapter Nut 2-Pack

The Diablo DHSNUT2 Snap-Lock Plus adapter nut set is a 2-piece bi-metal thread conversion coupling engineered to convert standard threaded hole saws into rapid quick-change cups. Featuring 1/2-inch and 5/8-inch female threads that accommodate hole saw diameters from 9/16 inch up to 6 inches, this 0.17-pound Swiss-made conversion set connects directly to Diablo Snap-Lock mandrels for instant cup attachment. Built for plumbers, electricians, and carpenters using handheld drills or drill presses with a minimum 3/8-inch chuck capacity, these thread adapters eliminate threaded arbor binding and enable tool-free plug ejection during heavy-duty pipe and conduit drilling.

Best Used For:

• Universal Hole Saw System Conversion: Threading onto major-brand bi-metal hole saw cups to convert standard threaded arbors into quick-release Snap-Lock systems.
• Plumbing Pipe & Drain Hole Cutting: Swapping between small 1/2-inch thread cups (9/16" to 1-3/16") and large 5/8-inch thread cups (1-1/4" to 6") rapidly during copper and PVC rough-in work.
• Electrical Conduit Junction Box Knockouts: Drilling metal enclosure panels and wooden stud bays without stopping to manually unthread seized hole saw arbors.

Key Performance & Safety Features

• Universal Snap-Lock Plus Adapter Threading: Converts major competitor hole saws to the quick-change Diablo arbor standard without extra tools.
• 1/2-Inch Precision Small Thread Adapter: Dedicated nut profile designed for compact hole saw cups from 9/16 inch to 1-3/16 inches in diameter.
• 5/8-Inch Heavy-Duty Large Thread Adapter: High-torque nut profile engineered for wide hole saw cups ranging from 1-1/4 inches up to 6 inches.
• Tool-Free Plug Ejection Support: Integrates with Snap-Lock mandrels to permit rapid core removal without prying wooden plugs with screwdrivers.
• Bi-Metal Industrial Alloy Metallurgy: Durable metal construction withstands high rotational torque and vibration from corded and cordless drills.
• Zero-Downtime Arbor Locking Mechanism: Locks cups tightly onto drive pins to prevent thread seizing and rotational wobbling during high-rpm cutting.

What's Included

• (1) 1/2" Thread Snap-Lock Plus™ Adapter Nut (for 9/16" to 1-3/16" Hole Saws)
• (1) 5/8" Thread Snap-Lock Plus™ Adapter Nut (for 1-1/4" to 6" Hole Saws)

Technical Specifications

Pro-Tip: Thread the adapter nut completely flush against the hole saw backplate before snapping onto the mandrel to ensure drive pins engage fully and protect thread teeth under high rotational torque.