Hole Saw Drill Bit LAIWEI HSS Hole Cutter with Arbor for Wood,PVC Board and Plasterboard(6-1/2"(165mm Hole Saw))

Goal: Install USB, audio and HDMI ports into the front of my arcade machine Holes required: 30mm 38mm Wood thickness: Close to half an inch Type of wood: Laminated thick particle board (it's VERY sturdy) My experience with drilling: I'm a noobie. Also my first time using a hole saw drill bit. Drill i used: Some old school corded drill that i borrowed. __________ Product Pros & Cons.... Pros: - Drill bit works on a hand held drill - It works (my photos show the result) - It's pretty sharp. Not exacto knife razor sharp but obviously sharp to cut all my holes. - I guess this is what they mean by "self-feeding" the drill bit drilled into the wood first, then the hole saw grabs onto the wood and then it begins cutting the hole. This made it VERY easy to cut a perfect circle. - It has slots on the sides of the drill bit. Makes it easy to stick a flat head screwdriver into the slots to eject the wood that gets stuck in the drill bit (My photo shows the wood caught in the drill bit) TIP: Stick the flat head screwdriver into one of the slots. Push the wood out a bit. Then take the screwdriver out, and place it into the other slot. And push the wood out. And keep going back and forth slowly pushing in each hole until the wood pops out or enough to where you can grab the wood by hand and pull it out. BUT BE CAREFUL: The metal drill bit will be VERY HOT after you drill with it. Don't touch it with your bare hands. Give it a few minutes to cool down. Unless you have protective gloves or something like that. - The drill bit is red. I do like the color Red. So that's neat. But just know. After i drilled a few holes. The red paint job starts to get worn down. It looks like a beaten down iron man suit after 1 or 2 holes. But that's fine. The color doesn't matter. - Packaging. Comes exactly like it's shown. They come in small light weight individual plastic cases. So when you're done, you can store the drill bit into the case. The case has a label with the drill bit size. - Spring. This drill bit has a spring. I honestly have no idea how useful that is or how that works. I just know the product works. - My holes were cut very straight. Took a small amount of effort. Took me 1 minute or less to cut through. I was going around a medium speed. I was trying to be very careful not to bang my hand into the wood once i broke through and was also being careful not to have the drill twist my wrist. Toward the end of the hole the drill slightly wanted to twist but i held on with 2 hands to prevent it. _____________ CONS: - The holes i made were not 100% perfect (some VERY TINY wood chipped around the edges of the hole) but this is probably my rookie mistake. I used a black sharpie to clean up small little chips. The adapters i installed cover some of the imperfections. TIP: When you drill into wood, the side that is visible is the side you want to drill into. Because the other side of the wood will be pretty damaged. Basically. The wood on the inside of the arcade wood cabinet, it's badly damaged once i made the holes. Wood is very badly chipped. But that's fine. No one will see that side. MAKE SURE YOUR DRILL IS SPINNING IN THE CORRECT DIRECTION OR YOU WILL BREAK THE DRILL BIT - My 38mm drill bit broke (BUT IT WAS MY FAULT) Lack of instructions. They expect you to know what you're doing. I borrowed the drill i used. It was given to me and it was set in the wrong direction. I didn't notice. I didn't think it even mattered. Until the 38mm drill bit broke. I had no problems with the 30mm drill bit. But the 38mm bit has threads to allow the hole saw to be removed. You can spin the hole saw on and off with your bare hands. So when i cut with the 38mm in the wrong direction. The wood saw caught into the wood and it couldn't spin in that direction. So I accidentally stripped the threads that hold the 38mm hole saw in place. Rookie mistake. TEST HOLES: As you can see from my photos. I did test holes. I cut holes into foam core, then stuck the adapters in. Just to test it. I imagine you can do the same with cardboard boxes. Good way to test to see if it's the correct size you need. OTHER INFO: For anyone buying those USB 3.0, etc adapters, if you're wondering what size they use here's the info: dual usb 3.0 = 30mm hole usb 3.0 + audio = 30mm hole dual HDMI = 38mm hole

I purchased this to cut a hole in my desk. This product is really great. It worked as it should. Price is reasonable too. The size of was accurate as well. Little bit more sharpness would have been better. But overall very good experience.

I needed 3 holes in 3/4" double-sided oak veneered plywood. I wanted to use my Dewalt quick-change mandrel. I drilled 1 test hole then the 3 finish holes. The saw did an excellent job for me. There was no chipping or tear-out on the finished side; however, on the back side there was significant tear out. I didn't notice any difference in speed on the 4th hole. It cuts pretty quick for a hole saw in 3/4" plywood. The paint started pealing off on the 3rd hole but that's no big deal for me. I highly recommend using a small pilot hole before using the larger bit that comes with it. I didn't drill a small pilot hole and the larger bit skated a little off of where I wanted it to be. The mandrel threads are not perfectly square with the surface of the saw. This isn't a big deal if you're using the included mandrel. For me the Dewalt mandrel threaded fine until the last 1/8" or so. I used channel locks to finish threading the saw. This is when I found the out-of-square mandrel threads as the saw doesn't sit flush on the back side of the saw. It's also when I discovered the holes for a quick-change mandrel are not spaced properly for my Dewalt mandrel. The 4 holes should be standard for quick-change mandrels. I had to use a hammer to get the mandrel pins into the saw holes. The pic shows the holes are just a little off from where they should be causing a tight fit of the pins. I've never used a spring on a hole saw but it works great. All 4 remnants popped out as soon as I was through the plywood. All in all the hole saw worked great for me. It just took a little effort to use my quick-change mandrel.

Works as expected came in very sharp.Perfect to size , very easy to use

It’s a hole saw! All I can say is it is very sharp. It It cut all the hole through my composite decking and is still sharp.

I used this to drill a hole in a wood board for my portable aircon exhaust pipe . It was a perfect fit

Review from a Tool & FileMaker. It's an average price. But performs well considering this. So therefore in contradiction, it's a good purchase. Upon close inspection it's well made including the rare central ejection spring for slugs. The blade's teeth are both even, sharp & concentric. The central h.s.s. drill is also of good quality & is fully adjustable using its set screw clamp that is assembled after main manufacturing using a fine coating of machine oil. The hole saw is finally finished off with a heavy orange powder coating for wear ability & life. It performed perfectly right out of the package & my project was completed in minutes. I can highly recommend these hole saws having been in my trade for over 40 years & upon deeper research the LAIWEI company itself.

Really surprised as to how well it cut. Used it to cut 16 holes in some very hard dry Red Gum. Performed admirally and still sharp!

es tal cual como dice en la descripción buena calidad para el precio