Capacity Concrete: Low 20mm(3/4″) Height 13mm(1/2″) Steel: Low 13mm(1/2″) Height 25mm(1″) Wood: Low 40mm(1-5/8″) Height 25mm(1″) Power Input 750W No-Load Speed 0~1,300/3,000/min. Impact Rate 0~20,800/48,000/min. Overall Length 347mm(13-11/16″)Weight 2.2kg(4.8 lbs.)