DescriptionBosch X-Lock Flap Discs 5" - 120 gritBosch's X-Lock Abrasive Sanding Backing Pads feature the X-Lock mount that offers a wheel change that's up to five times faster than conventional interfaces. There’s an audible snap when mounting an X-LOCK wheel on an X-LOCK grinder. The wheel mounts properly without the need for a spanner wrench or flange nuts. The wheel is released from the grinder with the pull of a lever. The pads work with Bosch abrasive sanding fiber discs made with high-quality aluminum oxide grit for exceptional speed and durability in tough environments.FeaturesBacking pads with an X-Lock mount – offers a faster， fixed mount and works with Bosch high-quality aluminum oxide fiber discsX-Lock wheel change – features snap-on mounting and grinder lever wheel release for change-out that's up to five times fasterTool-free disc swap – features an audible snap when mounted， without a spanner wrench or a flange nut for no losable partsBackward compatible – Bosch X-Lock Accessories are backward compatible with standard 7/8 In. arbor mountsAluminum oxide bonds – specially formulated with aluminum oxide grit for speed and durabilityApplication focused – ideal for metal surface finishing， weld blending and rust removalPrecision manufacturing – optimized blades for less vibration and improved cutting speedSpecificationsBrand NameBoschAssembled Depth (in)4Assembled Weight (lbs)0.154Assembled Width (in)5California Proposition 65 Warning RequiredYesCountry of OriginNetherlandsDiameter5 inglobalTradeItemNumber (GTIN)00000346642278 Grit120Height (in)5Package Contents(10) 5" DiscPackage Depth5Package Height0.5Package Weight1.154Package Weight (lbs)1.154UPC000346642278