•Precision Threading Tool: The bottom bracket threading tool is divided into left and right sides—left for the crank direction and right for the chainring direction. Ensure you follow the correct orientation during use •Durable Stainless Steel Material: Made of high-quality stainless steel, this tool ensures long-lasting durability and resistance to corrosion, providing reliable performance for your bike maintenance •Application: Suitable for common bicycle bottom brackets, it's a versatile tool for repair and threading tasks Operation Tips: •Before using the threading tool, apply specialized tapping oil to both the surface of the tap and the inner diameter of the bottom bracket. Ensure the tool is aligned horizontally with the bottom bracket before threading. If excessive resistance is encountered during the threading process, turn the tool back a few revolutions to clear the debris, then continue threading Specifications: •Material: Stainless steel •Weight: 1.95KG •Tap model: BC1.37*24 Package included: •1 x L Threading Tap •1 x R Threading Tap •2 x Rotating Handles