Discription:10pcs 40mm Diamond Grinding Wheel Cutting Disc with 2 Mandrels for Dremel Rotary Tool

Specification: Material: Diamond Wheel Diameter: 40mm Rod Shank Diameter: 3mm Max Speed : 20，000 RPM Grit : 80 Features: Made of powder alloy hot forming， high hardness， abrasion resistance， good impact resistance and longer life. It's dry wet amphibious，small slot and high shapeness. Ideal for cutting all kinds of metal， gem， jade， ect. Note:To improve the service life，please add water for coolant when using diamond tools. Package Included: 10x Grinding Slice 2x Rod Detail Pictures: