Bahco Sandflex Bimetal Hole Saw Drill Bit – 79mm Diameter for Metal Cutting

Description

• This bi-metal hole saw from Bahco is designed for professional use, offering high performance and durability. It efficiently cuts through a wide range of materials including wood, plastics, non-ferrous metals, and various steels such as stainless steel. Compatible with all electric drills, both fixed and portable, it features holes that facilitate easy removal of cut material. The maximum cutting depth is 38 mm (1 1/2 inches). The saws are supplied in a cardboard box with instructions for use.

Technical Specifications

• Material: Sandflex® Bi-Metal with 8% cobalt for enhanced durability and heat resistance
• Teeth: High-speed steel (HSS) with variable tooth pitch of 4/6 TPI (teeth per inch)
• Maximum cutting depth: 38 mm (1 1/2 inches)
• Diameter tolerance: Nominal size +1.5 mm / -0.0 mm
• Number of teeth per inch varies depending on size
• Suitable for portable and stationary drills with appropriate support

Compatibility and Accessories

• Compatible with all electric drills, both fixed and portable
• Requires a compatible drill support or arbor (sold separately, e.g., series 3834)
• Available in a wide range of diameters from 14 mm up to over 210 mm, including sizes like 14mm, 16mm, 20mm, 25mm, 32mm, 40mm, 50mm, 70mm, 100mm, 152mm, and more

Installation

• Select the appropriate diameter for your application, such as pipe, conduit, or cable hole
• Use a compatible drill support or arbor suitable for the saw size
• Adjust the drill speed according to the material and saw size, following recommended RPM guidelines
• Ensure the saw is securely attached and the workpiece is firmly fixed before operation

Usage

• Apply cutting fluid or lubricant when cutting metals to reduce heat and prolong tool life
• Operate at recommended speeds: low RPM for stainless steel (40-50 RPM), medium RPM for steel and iron (80-100 RPM), higher RPM for aluminum, copper, and plastics (120-700+ RPM)
• Use moderate pressure; let the saw do the work to avoid overheating and premature wear
• Wear safety goggles and gloves to protect against flying debris
• Inspect the teeth before each use for damage or excessive wear

Other Information

• Large diameter saws (168 mm and 210 mm) feature 6 DPP (R6) teeth with a standard cut depth, while 177 mm saws have 4/6 DPP with a maximum cut depth of 50 mm
• All large saws have a cutting angle of 0°, making cuts less aggressive