It is possible to use different types of nuts while using the same holder and collets. Standard, M type and bearing type, they offer stronger holding and reduce vibration of the tool. All chucks have passed hardness and anti-crack test.Low strength steel could lead crack and rust very soon, especially by the inside pocket area, accuracy will also drop only after a little while, so make sure avoid purchasing bad quality and unbalanced chucks. 10 x CAT40 ER32 Collet Chuck Holder. We will offer proper arrangement and help to resolve any problem as soon as possible. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Workholding & Toolholding\Toolholding\Other Toolholding". The seller is "jo58_24" and is located in this country: US. This item can be shipped to United States.