"OPEN BED ENGRAVING TABLE 20 IN. BY 24 IN.;VACUUM CHIP REMOVAL;REMOTE CONTROLS;SPINDLE WITH MICROMETER DEPTH ADJUSTMENT;6 CARBIDE CUTTERS IN ASSTD SIZES;ACCESSORIES AND TOOLS KIT;TRS 80 COMPUTER INCLUDES DUAL DISK DRIVES,64K MEMORY,RS 232 PORT;VACUUM P/N 820-100;TRS 80 MODEL 4 COMPUTER;ENGRAVES ALUMINUM,PLASTIC AND NYLON"