Feature:1. Compatible: Universal for valve diameter of 2030mm, for example, fit for GL145 GL125 CG125 CB125T WING100; replacement for Sanyangxia Apricot ZH125 ZH125A XS125B ZH150.2. 12 Winch: The sizes of winches are 20 x 30 degrees, 23 x 30 degrees, 22 x 58 degrees, 22 x 45 degrees, 27 x 58 degrees, 27 x 45 degrees, 26 x 30 degrees, 24 x 58 degrees, 24 x 45 degrees, 31 x 45 degrees, 31 x 58 degrees, 30 x 30 degrees.3. 4 Grinding Head: Kit includes grinding head x 4, 21 x 45 degrees, 24 x 45 degrees, 26 x 45 degrees, 30 x 45 degrees, and includes 2 pieces toolholder with a rod driver,1 blind nut.4. Easy to Use: Valve seat tool kit has a grinding head. Once hinged, it is easy to grind with a grinding head for several weeks. If there are no particles, there will be no leakage.5. Alloy Steel: The valve seat reamer tool is constructed with alloy steel, ensuring durability, strength, and precision for reliable and efficient valve seat reaming operations.Specification:Item Type: Valve Seat Reamer ToolMaterial: Alloy SteelWinch Size:20 x 30 degrees, 23 x 30 degrees, 22 x 58 degrees, 22 x 45 degrees, 27 x 58 degrees, 27 x 45 degrees, 26 x 30 degrees, 24 x 58 degrees, 24 x 45 degrees, 31 x 45 degrees, 31 x 58 degrees, 30 x 30 degreesGrinding Head Size:21 x 45 degrees, 24 x 45 degrees, 26 x 45 degrees, 30 x 45 degreesCompatible: Universal for valve diameter of 20-30mm / 0.8-1.2in Such as:Fit for Jialing 145 for Jialing 125 Fit for GL145Replacement for Sanyang SY125 Luxury Wolf 125RS3A Replacement for Sanyangxia Apricot ZH125 ZH125A XS125B ZH150Fit for GL125 for Wuyang WY125A WY125F CG125 CB125T Happiness XF125 Double Lion SS90 C70 WING100 CD90 Rainbow HTCB for Jialing JH70Replacement for Gwangyang Haomai GY6-125/150 Replacement for Wind speed CH125 CH150 Celebrity CH100Replacement for Suzuki EN125 GS125 GN125 All 4-speed cycle horizontal engineIt does not apply to motorcycles such as for SRZ150 or for HK250..Package List:12 x Reamer4 x Grinding Head 3 x Cutter Bar1 x Nut1 x Storage Box