Hello
I Have LAIP 0401010405 It is MT3 holder for DIN6388 collets
There are several OD diameters on this collet system, like ER 25/32 etc.
I have some collets, like these fits, but have differents marrkings
20 mm collet DIN6388B EOC25B.D20 and marking on collet 20 - 19,5 this has 12 slits
12 mm 6 slit collet (only one diamter, no range) LAIP 020 1051200
OD max dia is 35 mm and length 52 mm
Pekka