There is really no end to improvement :) We've faced this lately with our former product, “CeraFix”. It wasn't possible, until now, to have the ceramic blade interchangeable at all. Ok, the developers of this tool weren't really looking for a solution, since the blade lasts virtually forever when you're talking substrates. Nevertheless, we had quite a few requests to have this blade interchangeable. No problem from now on. Like its predecessor, the CeraSwitch works great for inlaid work, small corners, inside gaps of letters, ornaments and much more. The deburred result is perfect and this knife lasts for years.