FAR KJ21 Main Features Tool type: It is a manual riveter for threaded inserts. Body material: Made with a painted sheet steel body, with plastic handles. Compatible inserts: Can be used for inserts in aluminum, steel And stainless steel in sizes M3, M4, M5, M6 and M8. Package contents: It is supplied in a practical plastic case which includes the riveter, tie rods and heads for all sizes from M3 to M8. Physical specifications: Weighs approx 1100 grams and measures 340x142 mm. Advantages: It is recommended by industry experts for its excellent leverage ratio, which allows for efficient application and reduces effort.