Specially used for simultaneously fixing a pair of rivets with adjustable distance in between, on lever arch files, clipboards, Application: Specially ... briefcases, etc Feature: Two spindle riveting at one action; And adjustable head distance (45-365mm).Description: ModelJZ-936SHRivet flange diameterΦ6 ... machines, hook button/D-ring riveting machines, etc. Lever Arch File Riveting Machine (JZ-936SH)