Standard Pack = 1 piece(s). Deburring Application = MRO ; Set Includes = NogaGrip 3 Handle/S Holder/ Medium Reversible Countersink/Plastic Edge Off Handle/3.2 mm, 10.4 mm, 16.5 mm RotoDrive Countersink/18 mm External RotoDrive/S10, S20, S30 Blades ; Type = Silver Unikit ;