Pneumatic Button Bit Grinder Machine For .
Pneumatic Button Bit Grinder Machine For Grinding Carbide Buttons . Product specifications: SC220 SC220 handheld grinding machines have quickly established themselves as dependable and versatile machines, The rotating speed of SC200 is 22000RPM which make the drill could finish the grinding of a drill bit with diameter 6-10mm in 5-8seconds,and only 20 seconds for a 20mm diameter bit,
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