SKF KRV32 PPXA Stud Type Track Roller - 12 mm ID, 32 mm OD, 40 mm Width GearWrench They are appropriate for threading

They are appropriate for threading a wide variety of materials both ferrous and nonferrous

especially for use with magnetic rails

parts of different sizes can be held precisely

Turning the tool speeds up work

SKF KRV32 PPXA Stud Type Track Roller - 12 mm ID, 32 mm OD, 40 mm Width GearWrench They are appropriate for threadingStud Type Track Roller sealed design Stud Type Track Rollers from SKF are designed for reliable performance in demanding industrial applications. The sealed design provides protection against contamination. Suitable for use in a wide range of industrial applications where reliability and performance are essential.