A striking tool is provided for interlocking with a bar-like tool having a fork end andor a pike end. The two lengths and any interposing standard hose lengths may thus be coupled together and inflated to a pressure in the range of 2 to 3. Substantial area of the score section is constructed of the substrate. In response to the request, the physical layer of the uplink connection is maintained while changing the downlink frequency from the first downlink frequency to the second downlink frequency.