SDS+ bits are suitable for lighter tasks, while SDS-max bits are designed for heavy-duty work SDS+ bits are suitable for lighter tasks, while SDS-max bits are designed for heavy-duty work
extreme jack hammer. The Extreme Jack Hammer would feature adjustable handles and vibration-absorbing systems to reduce operator fatigue during prolonged use. This attention to comfort not only increases productivity but also enhances workplace safety by minimizing the risk of injuries associated with vibration and repetitive motions. Due to the hard carbon nanofibers and abundant welded joints among the nanofibers, the hard carbon aerogels display robust and stable mechanical performances, including super-elasticity, high strength, extremely fast recovery speed (860 mm s-1) and low energy loss coefficient (<0.16). After tested under 50 % strain for 104 cycles, the carbon aerogel shows only 2 % plastic deformation, and retained 93 % original stress.