Features1CNC knurling design, high strength and nonslip, flat thrust, wide use range, strong versatility. 2Stainless steel screw rod, close and detailed thread pitch, high strength. Suitable for most head tube lengths, aluminum alloy upper/lower pressure block. 3Allaluminum alloy CNC detachable handle, anodized surface, high gloss, has a light weight effect. CNC exquisite turning design, aluminum alloy joints, with fine thread. 4Pressure block design, the back is used for assembling the pressin bottom bracket, and the sinking table is designed to reduce the pressure on the bearing during installation. When installing the pressin bottom bracket, adjust the position of the press block to the opposite side, hold it with both hands and slowly apply pressure to install. 5Plane thrust bearing, laborsaving design, the bearing uses lubricated balls, not easy to be crooked, hold with both hands and slowly apply pressure to install. pay attention to whether the headset is tilted, with an adjustable wrench, step by step, it is recommended to install only one side each time.SpecificationItem Type: BB bottom bracket installation toolMaterial: Aluminum alloy+304 stainless steelColor: As pictures shownBrand: TOOPRESize: Approx. 21 x 27.5cm / 8.3 x 10.8inDiameter: Approx.12mm / 0.5inPackage List1 x BB Bottom Bracket Installation Tool2 x Accessories