Kundenbewertungen für VEVOR Kernbohrer Bohrkrone φ 114 mm 356 mm Bohrtiefe, 1-1/4 Zoll-7 Innengewinde, Hochpräzisions-Schweißtechnologie, Nass-Diamantkernbohrer Kernlochbohrer für Stahlbeton Ziegel Mauerwerk

Hi. The cutter is good, but the center drill is short. It's unclear what it's for if it doesn't perform its function.

Een serieus oordeel over de kwaliteit kan ik helaas niet hebben omdat ik maar 1 gat hoefde te boren en dat ging goed. De meegeleverde centerboor is niet lang genoeg en steekt er dus niet uit om als centerboor te gebruiken. Hierdoor een andere centerboor erbij moeten kopen die wel uitsteekt om de klus af te maken. Verder raad ik ieder aan om wel met water te koelen. Bijvoorbeeld met een plantenspuit of iets dergelijks.

Bought the core drill to make 2 holes for a pool stair ladder into concrete. The 9 1/2 core drill worked well cutting through the concrete while applying a steady stream of water. My problem with the product is that the pilot bit that centers the core bit is only 9 inches long, the drill bit is useless to keep the core drill centered when trying to establish the hole where you need it. I had to cut a 3 inch hole into a piece of plywood and use that template as a guide so the core drill drilled the hole where I needed it.

Attrezzo di pessima qualità usata per 3 fori in un muro non di cemento armato, la carotatrice si e rotta.

Did pay attention i guess during purchase as i don't need dry drill bit. I guess they'll just sit in the box, to much pain in the ass to return. Im sure it a good bit thou.

Zentrierbohrer zu kurz, daher sinnfrei. Mußte einen anderen Bohrer benutzen. Lieferungzeit zu lange, Verpackung mangelhaft, Tracking undurchsichtig Die Serviceabteilung gibt vorgefertigte Standard Antworten, nutzlos. Die Bohrleistung ist gut

The center pilot bit is too short and does not protrude out the end of the hole saw. I did try and pre-drill the pilot hole without the hole saw and found the hex screw would not stay tight in the arbor, so the pilot bit is basically useless. While the kit comes with 3 adapters, the threads are very loose fitting and the SDS Plus in particular only had a small portion of the threads engage inside the hole saw. I'm surprised it didn't strip out. It seems like this "KIT" is really just a bunch of random pieces they threw together and are not specifically made to fit together. While the hole saw did seem to cut through the masonry block fairly well at first it became less effective near the end of the 8" deep hole. If you only need this item one time, don't need the pilot drill and are sure there is no rebar then the price is good for a DIY'er. Just don't expect to put this tool in your kit and use it reliably in the future.

A broca central é mais pequena que a exterior, logo impossibilidade de servir como centro do furo. Usei outra solução para conseguir centrar a broca, furou muito pouco até perder toda a eficiência

Deze boor besteld om 2 gaten in beton te boren. Centerboor steekt er niet uit dus was niet te gebruiken en de boor zelf was kapot na 10 cm boren.

I purchased this Corvette the same time I bought my new drill because the bit that comes with the drill was only 4 inch and I need 4 1/4 so I ordered this 4 1/4 drillbit But to my surprise, it landed here and it doesn’t fit this drill. It’s for a different type again. I’ve tried multiple times to get a hold of you guys and the way you have it set up to connect is Ludacris I’ve purchased many things from Vevor as I really like your products however, lately they’ve been going downhill The biggest concern I have is reaching out to you people this thing about tickets and all the stuff you’re talking about I ain’t got a clue and I’ve replied to you. I’ve sent you all the information I can send you and you still act like you didn’t even get my message that you want me to send all the stuff again I’ve sent it to you two or three times. Very disappointed and if we can’t get this solved soon, I will completely stop by in Beaver and I will encourage my friends to do the same because I will start posting on the Internet that problems I’m having Sorry, I hate to do that but I hate to be screwed around with Steve