Description:Professional and exquisite workmanship makes it have a long service life. Simple and convenient installation and use will not waste your time and energy.The universal interface allows it to be used for a variety of electric tools. And the wide range of applications makes it very reliable and practical.Made of plastic and metal material, it is very durable to use.The length of this product is 3.45cm and the width is 3.53cm.It is suitable for RS550 and can be used for electric drills and electric hammers.Item Name: Motor Carbon Brush HolderMaterial: Plastic, MetalFeatures: Widely Used, Reliable, Simple InstallationSize Details: Size: 3.45cm x 3.53cm/1.36" x 1.39" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Motor Carbon Brush Holder