Heavy Duty 4 Hole Saw with Arbor, Abuff 38mm Depth Bi-Metal HSS 4 Inch Hole Saw Blade With Positive Rake Teeth For Cutting Soft Metal, Drywall, Plastic, Wood, Fiberboard
Brand: Abuff
Color: 4-inch with Arbor
Product Description:
Abuff 4 inches Hole Saw for metal sheet, drywall, plastic pipe, wood, PVC, fiberboard, grommet Hole, recessed light and can light hole Drilling.
Variable depth gullets provide more efficient chip clearance; 4/6 variable pitch teeth for reduced noise and improved performance.
Electron beam weld for stronger, longer lasting teeth.

From the Manufacturer:
The 38mm depth of 4" Bi-Metal Hole Saw is crafted from the highest quality bi-metal. The teeth are attached to a carbon steel body by a process called electron beam welding.
The result is a tool composed of two types of metal welded edge-to-edge - also know as bi-metal construction.
Because the Hole Saws are engineered and manufactured for exceptional sharpness and durability, they will cut much more than wood.
These saws will also cut holes in aluminum, copper, iron, stainless steel and zinc. The hole saws also have a tooth "pitch" that varies from 4 to 6 teeth per inch.
This reduces harmonics and improves performance. Also, the variation in depth of gullets between the blade's teeth provides more efficient chip clearance, giving you greater cutting speed.
4 inch hole saw (38mm depth) comes WITH ARBOR; 2 EXTRA DRILL BITS and 1 EXTRA HEX WRENCH for replacement. Hole saw made of top HSS & Bi-Metal for Heavy Dusty capability improved durability with Rust-proof. Drilling with sharper Positive Rake Tooth cuts material faster than other brand.
The 4" hole saw fits universal Mandrel such as Lenox, Dewalt, Milwaukee and Bosch. 38mm depth of hole saw help to cut 2x material in 1 pass.
This 4 Hole Saw Blade is design for drilling metal sheet, drywall, plastic pipe, wood, PVC, fiberboard, grommet hole, recessed light and can light hole Drilling.
Increased wall thickness of hole saw improves durability and minimizes tooth loss, 2X more durable with 50% longer life than other brand hole saws.
Abuff hole saw and 90 days refund or replacement for no reasons. All your product problems in these 2 years warranty will be solved promptly. Just contact us whenever you have troubles or suggestions