1" LEFT HAND THREAD BLADE BOLT FOR SERVIS ROTARY CUTTERS REPLACES 571044 D8NN9350AA The diameter on the inside 491 132896 The diameter on the inside of the bushing is 1 inch on one end and 1 3 8 inches on the other end 020 undersized Fits Servis 50 Brand AgSmart Make Type Model Servis Rhino Rotary Cutter 2160 Servis Rhino Rotary Cutter 260 Servis Rhino Rotary Cutter 272 Servis Rhino Rotary Cutter 284 Servis Rhino Rotary Cutter CLEX 15 Servis Rhino Rotary Cutter CYCLONE 128 Servis Rhino Rotary Cutter CYCLONE 60 Servis Rhino Rotary Cutter CYCLONE 72 Servis Rhino Rotary Cutter CYCLONE 84 Servis Rhino Rotary Cutter CYRO 128 Servis Rhino Rotary Cutter CYRO 1310 Servis Rhino Rotary Cutter CYRO 160 Servis Rhino Rotary Cutter CYRO 60 Servis Rhino Rotary Cutter CYRO 72 Servis Rhino Rotary Cutter CYRO 84 Servis Rhino Rotary Cutter FLEX 10 Servis Rhino Rotary Cutter FN 10 Servis Rhino Rotary Cutter FN 15 Servis Rhino Rotary Cutter FR 10 Servis Rhino Rotary Cutter FR 15 Servis Rhino Rotary Cutter GR60 Servis Rhino Rotary Cutter GR72 Servis Rhino Rotary Cutter SM 60 Servis Rhino Rotary Cutter SM 72 Servis Rhino Rotary Cutter SR10M Servis Rhino Rotary Cutter SR15M