Kundenbewertungen für VEVOR Kernbohrer Bohrkrone φ 127 mm 356 mm Bohrtiefe, 1-1/4 Zoll-7 Innengewinde, Hochpräzisions-Schweißtechnologie, Nass-Diamantkernbohrer Kernlochbohrer für Stahlbeton Ziegel Mauerwerk

I used the 5 inch bits mostly to remove rock for underpinning. The bits aren't as heavy as other brands bits but they deliver non the less. I cored hundreds of holes in front of the walls and under the walls. The bang for buck is not even comparable with any other bits I found on Amazon. The price Vevor is charging for core bits is so low, I could buy 5 bits for the same price of 2 Sali bits. And the Sali is a discounted bit! The bit works best with constant water flow expecially on your first hole. If you don't have water running through your drill the slug with stop the bit no matter how strong the drill motor. I was coring through depths up to 20 inches of rock. As you can see in the pics, I attached my drill to my excavator. Plus I added a Pic of one of the 5 foot sections I cored out for the underpinning. These bits work! But I would advise buying an actual core drill. I have a heavy duty Milwaukee hammer drill and it still isn't able to properly core holes. Vevor sells core drills that are pennies on the dollar compared to ANY other dealers!! The down side, when something breaks it takes weeks to get replacement parts. Also when I first started ordering their bits they would come within a day or two. No they take up to a week to deliver. All in all these are the best bit for the price! Not even close. Tried to add pics but their site won't upload them.

Wie immer, zu diesen Preis unschlagbar, Top

Hatte mir die 127 Bohrkrone besorgt um 25cm durch Estrich und 50cm durch Sandstein zu bohren. Verarbeitung ist präzise und das Bohren (mit Kernbohrmaschine) hat hervorragend funktioniert. Vevor ist großartig!

It looks to be a good quality product with sharp cutting teeth. Unable to locate an SDS attachment to suit locally as the thread is an off size. Will have to return