... ) RF-12DRThis 8-station lock former offers 6 forming positions, Pittsburgh and auxiliary double seam(ACME),right angle flange, drive cleat ... -08DRThis 6-station lock former offers 3 forming positions, including pittsburgh, right angle lock and power flanger. Customer can order another ... -12MRF-12M is featured of S cleat rollers. It has pittsburgh, double seam (ACME), as well as drive cleat (size of ...