The First Tool Big Power Mini Metal Bow-Arm Jigsaw Allows straight-line and curve cutting Is made of metal except for drive belt cover Offers special design, like the reciprocating touch-safe blade Has electroplated parts to make it more beautiful The The First Tool Big Power Mini Metal Bow-Arm Jigsaw has a new 8-generation powerful motor is adopted, and the motor can reach 144 W at most. The whole metal combination is durable and reliable, and the maintenance cycle is long. The transformer has over-current protection, over-voltage protection, overheating protection. With bow-shaped arm. The material of a bow-shaped arm with its accessories is metal which increases its durability. The main parts include headstock, central block, jigsaw base, jig-saw casing, motor blade, gear, jigsaw table, connection piece, drive belt cover, etc. All of the parts are made of metal except drive belt cover. With special design, the reciprocating blade is touch-safe in case of finger contact -it just causes slight vibration without cuts when skin contacts.