Tolsen hole saw teeth made from specially hardened type M3 high speed steel. The varying teeth height and gullet sizes result in much faster cutting and longer life. Bi-metal hole saw outperforms and outlast traditional standard pitch models. This combo includes an arbor and drill bit that designed to fit Tolsen hole saw and most standard drills.

Features:

• Can be used on steel, stainless steel, aluminum, wood, MDF, drywall and other construction materials
• Made of Bi-Metal M3 high speed steel
• Progressive laser-cut tooth geometry for fast cutting ability
• Great tool for general construction, plumbing and electrician
• Cutting diameter 4-1/4 inches or 108mm and cutting depth up to 1.5 inches or 38mm

Specifications:

• Brand: Tolsen
• Model: 75808, 75701
• Cutting diameter: 4-1/4in or 108mm
• Cutting depth: 1.5in or 38mm
• Made of HSS M3 Bi-metal
• Variable teeth 4-6TPI
• Blade weight: 15.5oz or 438g
• Shank size: 7/16in or 11mm
• Blade collar diameter: 5/8in or 15.8mm
• 1/4in or 6.35mm pilot drill bit 
• Drill bit length: 2-15/16in or 75mm
• Arbor weight: 7oz or 203g

Package includes:

• 4-1/4in or 108mm bi-metal hole saw blade
• Hole saw arbor with pilot drill bit