Wire EDM 3Ruler Kit compatible to Systems 3R – Cut E 600. Rapid Holding Systems version WEDM workholding includes 3R-239-XXX compatible 3Rulers and Reference elements for all GFAC_CHARMILLES machine models. The cross-section is matched to be the length to ensure optimal stability. INCLUDES: (2 Units) Compatible 200.47J-2 & 200.5J-2, (1 Set= 2pcs) 3R-A239.1 compatible Clamps, and Accessories