Century Drill & Tool 5018 1-1/8" Bi-Metal Shark Tooth Hole Saw:

Key Features

• Bi-Metal Construction: Made with 8% cobalt high-speed steel teeth electron welded to a shatterproof, shock-absorbing alloy body. 
• Shark Tooth Variable Pitch Design: Provides fast, clean cuts with reduced vibration and wear. 
• Extra Deep Cutting Depth: Cuts up to 1-1/2 inches deep. 
• Versatile Compatibility: Works with portable electric drills, lathes, and milling machines. 
• Made in USA: Ensures high manufacturing standards and reliability.

Specifications

• Model Number: 5018
• Diameter: 1-1/8 inch
• Cutting Depth: 1-1/2 inches
• Tooth Material: 8% cobalt high-speed steel
• Body Material: Bi-metal alloy
• Tooth Type: Variable pitch
• Suggested RPM:
  • Mild steel: ~275 RPM
  • Cast iron: reduce RPM by 30%
  • Brass/aluminum: increase RPM by 30%

Applications

• Metals: Stainless steel, brass, aluminum, pipe steel, sheet metal, and cast iron.
• Wood: Nail-embedded wood, hardwood, plywood.
• Plastics & Composites: Fiberglass and plastic.
• Machinery Use: Ideal for use in electric drills, lathes, and milling machines.
• Industries: Construction, plumbing, electrical, automotive, and general DIY.