RIGID (RM) muftalar, RM12, RM16, RM25, RM30, RM35, RM40, RM45, RM50 dan boshlab H/F turi
| SIZE | Bush NO. | Maks Bor | A | C | D | E | F nom | G nom | H | J | L | |
| Metrik | dyuym | |||||||||||
| RM12 | 1210 | 32 | 1 1/4" | 118 | 35 | 83 | 26 | 76 | 102 | 7 | 38 | 57 |
| RM16 | 1615 | 42 | 1 1/2" | 127 | 43 | 80 | 38 | 89 | 105 | 7 | 38 | 83 |
| RM25 | 2517 | 60 | 2 1/2" | 178 | 51 | 123 | 45 | 127 | 149 | 7 | 48 | 97 |
| RM30 | 3030 | 75 | 3" | 216 | 65 | 145 | 76 | 152 | 181 | 7 | 54 | 159 |
| RM35 | 3535 | 90 | 3 1/2" | 248 | 75 | 178 | 89 | 178 | 213 | 7 | 67 | 185 |
| RM40 | 4040 | 100 | 4" | 298 | 76 | 210 | 102 | 216 | 257 | 7 | 79 | 210 |
| RM45 | 4545 | 110 | 41/2" | 330 | 86 | 230 | 114 | 241 | 286 | 7 | 89 | 235 |
| RM50 | 5050 | 125 | 5" | 362 | 92 | 260 | 127 | 267 | 314 | 7 | 92 | 260 |
Qattiq muftalar (RM muftalari) konusli teshikli butalar bilan foydalanuvchilarga qattiq bog'langan vallar tez va oson mahkamlash imkonini beradi, bunda konusli teshik butalarining mil o'lchamlarining keng tanlovi qulay. Erkak gardishda buta uyadan (H) yoki gardish tomondan (F) o'rnatilishi mumkin. Urg'ochida har doim F bush moslamasi mavjud bo'lib, u HF va FF ikkita mumkin bo'lgan muftalar yig'ish turini beradi. Gorizontal shaftlarda foydalanilganda, eng qulay yig'ilishni tanlang.
