Description of Antrader Bi Metal Cutting Drywall Fiberboard
💎Package with 6-3/8 inches Hole Saw with Arbor, 2pcs 1/4 inch Pilot Drill Bits and 1 Hex Wrench. 💎38mm depth of hole saw help to cut 2x material in 1 pass. Premium 7/16 inch hex shank arbor perfectly fits large hole saws from 1-1/4 inch to 6-3/8 inch. 💎Cutting smooth and even 6-3/8" diameter holes through metal sheet, wood, drywall, plastic and plywood. 💎Made of High Speed Steel & Bi-Metal for heavy dusty capability improved durability with Rust-proof. 💎Sharper Positive Rake Tooth cuts material faster for faster drilling.
This was a good solid saw that worked well on the batten ceiling to install the 6 inch ultra thin LED downlights I was installing. I didn't have a large chuck drill so I bought an adapter to fit what I had and it worked fine. Getting cutouts and getting the saw off the drill wasn't the easiest thing I've ever done.
Pros
💎Pack of 2 with 6-3/8" Leaf Hole Saw 1/4" Pilot Bit and 1 Allen Wrench.
I used this to install a 6 inch vent above the stove through the cabinets and the outside wall of the house. He did the job including drilling the siding, drywall, and wood cabinets. I don't think the blade is high quality meaning it dulls quickly but for the 4 or 5 holes I had to drill it did the job. Be careful - with a heavy drill you can easily dislocate your wrist with this heavy hole saw.
Pros
💎Made of high speed steel and bimetal for severe dusty conditions, increased strength and rust protection.
Bought this saw to install a recessed light over the shower. Turns out the previous owner had used cement board for the ceiling there. The saw was about halfway through before all the teeth were ground smooth and I finished the hole with a jigsaw (burning out two jigsaw blades). I can't fault this saw because they never said it could cut through cement board. I'll probably buy the same hole saw again when installing recessed lights in a drywall ceiling.
Pros
💎Sharp positive front tooth cuts material faster for faster drilling.