YND brand rotating hook for Industrial sewing machine parts. Max sewing speed:4500r.p.mAperture:Φ7.94mmSuitable for: JUKI:DDL-500,501,505,506 etc. JANOME:DB-J709 CONSEW:290RATCW,RTC,RTCW,TC,TCW TOYOTA:AD157-623,625,6,663 etc. SUNSTAR:KM-235A TYPICAL:GC6-1-D3 OUR SHOW ROOM:OUR OFFICE :OUR PACKING: YND BRAND ROTATING HOOK