Collet ER, according to standard DIN 6499, form B, type class 2, size ER 32. Brand Gurfer with reference ER32-2.
Also available: set of collets ER, DIN 6499 B CL2, size ER 32, Ø 3,0 - 20,0 mm per 1 mm, 18-piece, in plastic storage case (ref. ER32SET2).
For mounting tools with straight shank.