4-TAYA NYUMA YA NYUMA YA KUJITUMIA
Ufungaji wa kituo kifupi cha silinda.
Vigezo vya muundo wa chucks hizi ni sawa na za mfululizo wa k11.
Yanafaa kwa ajili ya usindikaji vipengele vya mraba na vipengele vya pande nane.
| Kipengee NO. | Mfano | D1 | D2 | D3 | H | H1 | h | zd |
| 571211 | K12 125 | 95 | 108 | 30 | 84 | 58 | 4 | 3-M8 |
| 571213 | K12 160 | 130 | 142 | 40 | 95 | 65 | 5 | 3-M8 |
| 571215 | K12 200 | 165 | 180 | 65 | 109 | 75 | 5 | 3-M10 |
| 571217 | K12 250 | 206 | 226 | 80 | 120 | 80 | 5 | 3-M12 |
| 571219 | K12 315 | 260 | 285 | 100 | 147.5 | 90 | 6 | 3-M16 |
| 571225 | K12 380 | 325 | 350 | 135 | 155.5 | 98 | 6 | 3-M16 |
| 571231 | K12 500A | 440 | 465 | 210 | 202 | 115 | 6 | 6-M16 |
