MK MORSE AV66 4-1/8″ VARIABLE PITCH HOLE SAW

Description

• Diameter: 4-1/8 inches (105 mm).
• Cutting Depth: 1-1/2 inches (38 mm) for standard AV models; the updated MHS66 version increases this to 1-15/16 inches (49.2 mm).
• Tooth Pitch: 4/6 variable pitch (Teeth Per Inch) designed to clear chips smoothly.
• Material Construction: M3 or M42 high-speed steel cutting edge electron-beam welded to a tough steel backer.
• Thread Size: 5/8″-18, requiring a separate arbor for operation. 

• Variable Pitch Teeth: This design allows for smoother, faster cuts with less vibration compared to fixed-pitch saws.
• Enhanced Durability: The MHS66 replacement model is reported to offer over 2x the life of the original Morse AV model.
• Reduced Friction: Newer iterations feature an exterior red coating that reduces side-wall friction during high-speed cutting.
• Efficient Slug Removal: Includes a large side slot to provide better leverage for removing the “slug” after a cut is completed.
• Sturdy Cap Design: The solid cap reduces runout and vibration, which leads to a more accurate and stable hole. 

• Metals: Stainless steel, mild steel, cast iron, aluminum, brass, and copper.
• Wood: All types, including plywood and nail-embedded wood.
• Others: Plastics, rubber, fiberboard, sheetrock/drywall, and wood composites.