C
Concrete guy
i have vacuum brazed drills for dry and wet use for a variable speed grinder. i prefer diamant drills in wet use but sometimes i don´t have my hole drilling machine by me. so the vacuum brazed works perfekt in marble and granit but on porcelain stoneware it works not smooth and if you don´t use it wet theres no long life. so i will try your tool, cause i can use it for natural stone by the way. but i personaly would prefer a big coating of diamant, only wet use and adjustable rings when shape is smaller.
in this video on 6.28min you see the bullnose tool on porcelain stoneware.
Lastre grande formato - Movimentazione e Taglio - - YouTube
The problem with diamant (sintered or metal bonded diamond) is as the tool wears by design the shape of the profile changes.
The metal section is designed to wear away to expose the diamond and keep the tool sharp, it's exactly how cutting blades work and as you know they wear.
So vacuum brazed is a better product for a profile tool that has to retain it's shape permanently.
As you point out, it will work wet or dry. We would expect an extended life span if used wet. What is yet to be determined is if the finish is improved hen used wet vs dry.
The monolit tool is vacuum brazed and interestingly they are using it at high speed on a standard grinder.
Last edited by a moderator: