People also ask
What does er stand for in collets?
The standard series are: ER-8, ER-11, ER-16, ER-20, ER-25, ER-32, ER-40, and ER-50. The "ER" name came from an existing "E" collet (which were a letter series of names) which Rego-Fix modified and appended "R" for "Rego-Fix". The series number is the opening diameter of the tapered receptacle, in millimetres.
What is the difference between BT40 and CAT40?
The difference between CAT and BT is the flange style, thickness, and size of the pull stud thread. BT tool holders use metric thread pull studs (retention knobs). Though both standards use the same NMTB body taper, BT tool holders are symmetrical around the main spinning axis while CAT tool holders are not.
What is er-32?
ER32 series collets have a capacity of 1mm-20mm. Each ER32 collet has a range of (1 mm). The size indicated on the collet is the largest size it can hold and can be collapsed smaller within its collapse range of (0.9mm). For example, ER32-6mm can grab a round shank from 6mm diameter to 5.1mm diameter.
What is the difference between CAT40 and big plus?
Based on this comparison, you could say that a BIG-PLUS holder is 4 times as rigid as an identical standard CAT40 holder, because it is 4 times as resistant to deflection.