ITEM NAME:Replacement Eletric Tool Angle Grinding Spiral Bevel Gear Series for Hitach C8R4 Replacement Eletric Tool Angle Grinding Spiral Bevel Gear Series for Hitach C8R4 The spiral bevel gear is made of metal, they are useful when the direction of rotation of a shaft must be changed. Good replacement for angle grinder broken gear. Product Name: Spiral bevel gear Suitable for: Hitachi 100 Material: metal Ring Gear Size: 44 x 11 x 13mm / 1.7 inch x 0.4 inch x 0.5 inch(Outer diameter * Inner diameter . * D) Pinion Gear Size: 19 x 8 x 13mm / 0.7 inch x 0.3 inch x 0.51 inch(Outer diameter * Inner diameter * D) Tooth No .: Gross: 35 small: 14 Color: Dark gray Net weight: 80g Package Contents: 1 x spiral cone gear