Xiamen Bestlink drill bits sharpener Hand held pneumatic button bits grinder BTON200 Rotation speed:20000RPM Motor power: 1.5 KW Work pressure: 5-7 bar (100 psi) Air consumption: 2.0 m3 / min (50ft3/min) Max. water pressure: 4 bar (60 psi) Air hose diameter: 19 mm Water hose diameter: 6mm Weight excl. packaging: 3.0 Kg Weight incl. packaging: 3.4 Kg Sound level: 92 dB(A)