5070 4-1/2" Bi-Metal Shark Tooth Hole Saw by Century Drill & Tool:

Key Features

• Shark Tooth® Variable Pitch Design: Reduces vibration and delivers smoother, cleaner cuts.
• Bi-Metal Construction: 8% cobalt high-speed steel teeth electron welded to a shatterproof, shock-absorbing alloy body.
• Extra Deep Cutting: Cuts holes up to 1-1/2 inches deep.
• Durable Build: Designed for long wear life and tough cutting conditions.
• Professional Grade: Suitable for contractors and DIY users.
• Made in the USA

Specifications

• Diameter: 4-1/2 inches (114.3 mm)
• Cutting Depth: Up to 1-1/2 inches
• Tooth Material: 8% cobalt high-speed steel
• Body Material: Bi-metal alloy
• Tooth Type: Variable pitch
• Suggested RPM:
  • Mild Steel: ~80 RPM
  • Cast Iron: Decrease RPM by 30%
  • Brass & Aluminum: Increase RPM by 30%
• Part Number: 05070

Applications

• Materials It Cuts Through:
  • Stainless steel
  • Brass
  • Aluminum
  • Pipe steel
  • Nail-embedded wood
  • Hardwood
  • Plywood
  • Sheet metal
  • Fiberglass
  • Plastic
• Compatible Tools:
  • Portable electric drill machines
  • Lathes
  • Milling machines