Single point water spraying , precise spraying. Pressing for needle retrieval , convenient and fast. - High Torques. - 3 Water spray. - 2 Air spray. - ⁠Ceramic Ball Bearing. - ⁠Push Button. Specifications : - Head size : 13.3 x 12.5 mm. - Air pressure : 0.28-0.30 MPA. - Speed : 380K RPM. - Noise : 60 DB. - Power : 20W. - Spindle Chuck Power : 3.2 Kg. - Warranty : 6 months.