Type | Cutting Blades : Lame de tondeuse pour jardin Sequence : 16350 Mounting holes diameter (mm) | Lawn Mowers/Scarifiers/Aerators/Hedge Trimmers Powered - Blades : 8.0 mmMulching function | Lawn Mowers/Scarifiers/Aerators/Hedge Trimmers Powered - Blades : Non Center mounting hole diameter (mm) | Lawn Mowers/Scarifiers/Aerators/Hedge Trimmers Powered - Blades : 17.0 mmCenter mounting hole shape | Lawn Mowers/Scarifiers/Aerators/Hedge Trimmers Powered - Blades : Rond Length (in) | Lawn Mowers/Scarifiers/Aerators/Hedge Trimmers Powered - Blades : 20 inLength (mm) | Lawn Mowers/Scarifiers/Aerators/Hedge Trimmers Powered - Blades : 507.0 mmSuitable for machine/vehicle model | Global : SD 51 / 51 BC / 51 BO / BBM 510QQ1 SBS / 51 BCQQ5 / B 51 O / Silverstar 35/51 / CPT 51 L / NC 51 / 51 TC / 51 BC / 51 SDO / BL 4051 SD / PM 510 OHV / BG 51 BO / FF 51 TSD / KSXC 510 BS / 050 P Rotation direction | Global : Droite Suitable for machine/vehicle brand | Global : MTD Mounting holes distance (mm) | Cutting Blades : 63.5 mm