A sensing mechanism for detecting user contact with an active portion of the power tool is provided. The second member can be permanently or removably secured to a supporting surface. The holder member has a guiding portion for guiding the sheet to the rotary member on the conveyance path between the tip portion of the claw member and the rotary member. The floating draw punch moves with the binder ring until the additional draw depth required to form the deep drawn part is essentially equal to the draw depth of a shallow drawn part. Other embodiments may specify a hash round type by an immediate operand as one of three SHA-1 round types or as a SHA-2 round type. Data transmissionreception between the virtual terminal devices or between the virtual terminal device and an actual terminal device can be performed smoothly.