Rolikli rayba turli raybalash operatsiyalari uchun mo'ljallangan, lekin ayniqsa, juda abraziv qatlamlarda burg'ulashda barqarorlashtirish uchun mo'ljallangan. U 4 5/8 dan 26 dyuymgacha bo'lgan teshik o'lchamlariga mos keladi. Bundan tashqari, bloklarni oddiy sozlash va kesgichlarni to'g'ri tanlash orqali har bir korpus keng teshik o'lchamlariga mos keladi.
Uch xil turdagi (T, F va B) to'sarlar taklif etiladi:
T turi: Yumshoq shakllanishlar uchun qattiq yuzli o'tkir tishlar bilan ishlangan, frezalangan.
F turi: O'rtacha qattiq shakllanishlar uchun qattiq yuzli tekis tishlar bilan ishlangan, frezalangan.
B turi: qattiq shakllanishlar uchun bosilgan volfram karbid tugmalari bilan jihozlangan.
Teshik o'lchami (dyuym/mm) | Ulanish. API | Bo'yin OD (dyuym/mm) | Kesuvchi diametri (dyuym/mm) | To'sar uzunligi (dyuym/mm) | Umumiy uzunlik (dyuym/mm) |
28" (711,2) | 7 5/8 REG | 9 1/2" (241,3) | 7" (178) | 15 3/4" (400) | 112 7/8" (2867) |
26" (660,4) | 7 5/8 REG | 9 1/2" (241,3) | 7" (178) | 15 3/4" (400) | 118 7/64" (3000) |
24" (609,6) | 7 5/8 REG | 9 1/2" (241,3) | 6 7/32" (158) | 15 3/4" (400) | 110 15/64" (2800) |
22" (558,8) | 7 5/8 REG | 9 1/2" (241,3) | 6 7/32" (158) | 15 3/4" (400) | 105" (2667) |
17 1/2" (444,5) | 7 5/8 REG | 9" (229) | 5 1/2" (140) | 12" (304) | 88 39/64" (2200) |
12 1/4" (331,2) | 6 5/8 REG | 8" (203) | 3 15/16" (100) | 11 13/16" (300) | 74 13/16" (1900) |
8 1/2" (215,9) | NC50 (4 1/2 REG) | 6 1/2" (165) | 2 13/16" (71) | 7 7/8" (200) | 68 7/64" (1730) |
6" (152,4) | NC38 (3 1/2 REG) | 4 3/4" (121) | 2" (50,6) | 7 7/8" (200) | 55 1/8" (1400) |
5 7/8" (149,2) | NC38 (3 1/2 REG) | 4 3/4" (121) | 1 13/16" (46,2) | 7 7/8" (200) | 55 1/8" (1400) |