Honing devices configured for use with a source of pressurized fluid. The handle is so constructed that the front end of a proximal portion of the handle thereof is supported by a second shaft at a position above the tool base and equipped with an elongated hole extending obliquely backwards from the second shaft. The channel length is selected to be very larger than the channel width to improve current characteristics in the saturated region, and a high VGS is applied to the driving TFTs to obtain a desired drain current. Without the additive, the underlayer alloy is antiferromagnetic. Otherwise, a Mayer Wave analysis may be performed to obtain parameter information related to the autonomic nervous system.