Models Sainsmart Genmitsu 3020-PRO MAX CNC router 150 1551 14 5mm to 8mm rigid shaft coupler 16 660 0 X-Adapter Ver4 for HP DPS model power supplies 5 41 0 20 mm Aluminum Corner Bracket 12 543 1 GT2 5mm bore idler pulley 43 1900 7 GT2 5mm Bore Double Head Gear Pulley 19 757 4