5818 1-1/8" Diameter Hole Saw – Arbor Attached Bi-Metal:

Key Features

• Bi-metal construction with 8% cobalt high-speed steel teeth.
• Teeth are electron welded to a shock-absorbing alloy body for durability.
• Variable pitch tooth pattern for smoother and faster cutting.
• Arbor attached design eliminates the need for a separate arbor.
• Extra-deep cutting depth for extended reach.
• Compatible with portable electric drills, lathes, and milling machines.
• Designed for clean cuts in a wide range of materials.

Specifications

• Hole Diameter: 1-1/8 inches (28.58 mm)
• Cutting Depth: 1-3/4 inches (44.45 mm)
• Shank Type: 3/8 inch hex shank
• Tooth Type: Variable pitch
• Material: Bi-metal (cobalt HSS + alloy steel body)
• Weight: ~0.31 lb (approx. 140 g)
• Speed Guidelines:
  • Standard RPM for mild steel
  • Reduce RPM by 30% for cast iron
  • Increase RPM by 30% for brass and aluminum

Applications

• Cuts cleanly through:
  • Stainless steel
  • Brass
  • Aluminum
  • Steel pipe
  • Nail-embedded wood
  • Hardwood
  • Plywood
  • Sheet metal
  • Fiberglass
  • Plastic
• Suitable for:
  • Electrical and plumbing installations
  • Metal fabrication
  • Woodworking
  • General construction