RuiKe 2 Pcs Electric Grinder Three-jaw Chuck Electric Grinder Shaft Small Mini 7/8x0.75/0.3-3.2mm New

Features: 1.Twist-to-tighten/loosen with heavily-knurled grip means no wrench or key needed. 2.Fit for genuine and genuine other-brand rotary tools.Heat treated and tempered alloy rust-resistant black oxide finish. 3.Three-jaw drill chuck allows quick and easy accessory changes without changing collets. Specification: 1.model: long tail M8x0.75mm short tail M8x0.75mm long tail M7x0.75mm short tail M7x0.75mm 2.material: alloy 3.clamping range of the chuck: 0.3-3.2mm 4.The output shaft diameter of the electric grinder and the flexible shaft that can be matched is 7.9mm.