Description Overview Eight units of HKS3-M industrial machines available. Model: HKS3-M. E28 configuration. 51.50 G104 specification. Specifications Items 001 through 006: 170 inch width, 1800 rpm, series 88200. Items 007 and 008: 180 inch width, 2400 rpm, series 109000. Year Items 001 and 002: year 2000. Items 003 through 006: year 2001. Items 007 and 008: year 2012. Condition Used industrial machines.