Makita DFJ312A Cordless Fan Jacket for Grinding Work CXT LXT [Bare] Internal Concrete Vibrator ) w BL1041B: 18 Dimensions 631580998015 ) w BL1041B: 18 Dimensions (L x W x H) w BL1016 BL1021B: 137 x 67 x 231 mm (5 3 8 x 2 5 8 x 9 1 8″) w BL1041B: 139 x 67 x 249 mm (5 1 2 x 2 5 8 x 9 3 4″) w o Battery: 133 x 67 x 201 mm (5 1 4 x 2 5 8 x 7 7 8″) Head Length 127 mm (5″) Max Output 260 W No Load Speed (RPM) Polishing: 0 – 2800 Sanding: 0 – 9500 Noise K Factor 3 dB(A) Pad Disc Diameter Hook & Loop Style: 80 mm (3 1 8″) Twist On Twist Off Style: 50 mm (2″) Sound Pressure Level 73 dB(A) Vibration K Factor Disc Sanding: 1 75A MAX for 10 min BOOST START 1V c 400A (12V) 360A (24V) BOST START Acc 550A MAX DUTY CYCLE 3sec Features 5 pockets: zippered chest pockets (left right) hardly torn side pockets (left right) left arm pocket The strength of battery pockets is improved with two snap buttons