Sai Systems designs and manufactures 25 mm Round Collet Knob with Marked Cap. Sai Systems is an ISO 9001:2000 Certified Company. 25 mm Round Collet Knob with Marked Cap falls in the category of control knobs. The model number of this knob is CK 24 that is available in all standard colours. The specifications of 25 mm Round Collet Knob with Marked Cap are height: 17mm and shaft diameter: 4.1mm/6.1mm/6.4mm.