Description: Material and Size: Made of sturdy metal and pp material, this reciprocating grinding machine measures 30*145mm in size, can be used for a long time.Quick Release: The grinder features a quick-release design that ensures the grinding head stays steady and does not wobble during use. This design also allows for faster replacement of the grinding head.Adjustable Speeds: The MS148 offers two-speed settings for fast or slow grinding, with its reciprocating motion that makes your grinding tasks easier.Easy to Use: With its a button start feature, this model tool grinder is easy to operate and suitable for all your grinding needs.Function: Multifunctional model surface polishing tool, great for all your DIY needs. Specification: Material: PP Size Chart: 14.5cmx3cm/5.71inchx1.18inch Package Includes: 1 Piece?Grinding Machine 2 Pieces?Grinding Machine Head Note: Please allow slightly errors 1-2cm differences due to manual measurement.