A professional 4-1/8 inch Diablo carbide teeth hole saw for wood and metal featuring a high-visibility red finish and a specialized design for rapid material removal and durability.
Graphic illustrating the Snap-Lock Plus mandrel system on a Diablo hole saw, demonstrating the fastest mandrel change with a tool-free connection for increased jobsite efficiency.
Comparison chart showing the increased cutting depth of the Diablo hole saw at 2-3/8 inches versus a standard hole saw at 1-5/8 inches, allowing for deeper holes in a single pass.
Demonstration of the fast plug ejection feature on the Diablo hole saw, showing a three-step process for effortless removal of wood cores from the carbide-tipped saw body.
Action shot of the Diablo DHS4125CT 4-1/8 inch carbide teeth hole saw drilling through a heavy-duty industrial pipe, showcasing its multi-material cutting capabilities.
Diablo Demo Demon Carbide Teeth Rough-In Hole Saw promotional video
A professional 4-1/8 inch Diablo carbide teeth hole saw for wood and metal featuring a high-visibility red finish and a specialized design for rapid material removal and durability.
Graphic illustrating the Snap-Lock Plus mandrel system on a Diablo hole saw, demonstrating the fastest mandrel change with a tool-free connection for increased jobsite efficiency.
Comparison chart showing the increased cutting depth of the Diablo hole saw at 2-3/8 inches versus a standard hole saw at 1-5/8 inches, allowing for deeper holes in a single pass.
Demonstration of the fast plug ejection feature on the Diablo hole saw, showing a three-step process for effortless removal of wood cores from the carbide-tipped saw body.
Action shot of the Diablo DHS4125CT 4-1/8 inch carbide teeth hole saw drilling through a heavy-duty industrial pipe, showcasing its multi-material cutting capabilities.
Diablo Demo Demon Carbide Teeth Rough-In Hole Saw promotional video
DIABLO

Diablo Carbide Hole Saw DHS4125CT 4-1/8 Inch (2-3/8 Depth Snap Lock Plus Mandrel Tool Free Plug Ejection Nail Embedded Wood Stainless Metal Boring)

Only 1 left
SKU: DHS4125CT
$46.95 USD

Description

Diablo Tools Logo

Diablo DHS4125CT 4-1/8" Carbide Teeth Hole Saw with Snap-Lock Plus

The Diablo DHS4125CT 4-1/8-inch carbide teeth hole saw cuts clean, large-diameter pass-through penetrations through nail-embedded wood, stainless steel, cast iron, aluminum, and dense composites during commercial plumbing, electrical, and HVAC rough-ins. Engineered with high-performance carbide teeth delivering up to 50 times longer cutting life than traditional bi-metal saws, this heavy-duty cup saw features an extra-deep 2-3/8-inch (60 mm) cutting depth that completes 40% deeper single-pass holes through double-stud framing and subfloors. Integrated with Diablo's Snap-Lock Plus mandrel system and tool-free plug ejection technology, it provides mechanical contractors and framing carpenters with fast cup exchanges, effortless core ejection, and high cutting speeds under extreme friction.

Best Used For:

  • Plumbing Drain and Soil Stack Penetrations: Cutting precise 4-1/8-inch clearance holes through 2x subfloors, timber joists, and studs for 3-inch PVC or cast iron plumbing pipes.
  • Multi-Material Electrical and HVAC Rough-Ins: Slicing cleanly through nail-embedded framing lumber, metal junction boxes, steel studs, and siding without swapping hole saws.
  • Commercial Stainless Steel and Metal Fabrication: Boring large-diameter holes in stainless steel sheet panels, structural ductwork, cast iron housings, and aluminum enclosures.

Key Performance & Safety Features

  • High-Performance Carbide Teeth: Delivers up to 50X longer cutting longevity versus standard bi-metal hole saws across abrasive metals and wood.
  • Extra-Deep 2-3/8" Cutting Depth: Enables 40% deeper single-pass cuts to bore through dimensional 2x lumber and subfloor assemblies with ease.
  • Snap-Lock Plus Mandrel System: Facilitates rapid, tool-free cup size swaps with a universal quick-change design that prevents thread locking.
  • Tool-Free Plug Ejection Design: Clears wood cores and metal slugs in seconds without requiring screwdrivers, pry bars, or external ejection tools.
  • Heat-Resistant Carbide Metallurgy: Resists thermal breakdown and tooth stripping when powering through tough stainless steel and nail strikes.
  • Variable Tooth Geometry: Aggressive cutting tooth design optimizes chip clearance and reduces motor drag for smooth, chatter-free cuts.

What's Included

  • (1) Diablo DHS4125CT 4-1/8" Carbide Teeth Hole Saw

Technical Specifications

Manufacturer Diablo by Freud
Model Part Number DHS4125CT
Hole Saw Diameter Size 4.125 inches (4-1/8 in / 104.8 mm Diameter)
Cutting Depth Capacity 2.375 inches (2-3/8 in / 60.3 mm Depth of Cut)
Cutting Tooth Material Industrial High-Performance Tungsten Carbide
Mandrel Connection System Diablo Snap-Lock Plus Quick-Change Interface
Mandrel Size Compatibility Fits Snap-Lock Plus Mandrels (5/8" to 6" Saw Range)
Plug Removal Mechanism Patented Tool-Free Plug Ejection System
Relative Cutting Life Rating Up to 50X Longer Life vs Standard Bi-Metal Saws
Drilling Operation Mode Rotary Drilling (Do Not Use Hammer / Impact Mode)
Total Item Gross Weight 1.25 lbs (20.00 oz / 0.57 kg)
Suitable for material type Nail-Embedded Wood, Stainless Steel, Cast Iron, & PVC

Pro-Tip: When cutting thick stainless steel panels with the DHS4125CT hole saw, run your drill at low RPM with consistent feed pressure and apply cutting wax or lubricant; this prevents work-hardening of the metal and keeps the tungsten carbide teeth running cool.