stainless still material , different size and length, different packing S.S. ReamersSharp angle positioning produce the sharper bladeTriangular cross sectionHand UseSilicone stops.02 TaperLength: 21mm, 25mm, 28mm, 31mmPacked 6 pcs to a box, Assorted package 15-40, 45-80 InstrumentSizeColour DesignationS.S. Reamers 8 Grey 10 Purple 15 White 20 Yellow 25 Red 30 Blue 35 Green 40 Black 45 White 50 ...