Cutting tool for cutting slices of a predetermined thickness

A cutting tool capable of cutting slices of a predetermined thickness, comprising:

• an elongate handle;
• a sheet-like blade connected to said handle, said blade having a lower edge sharpened to form a cutting edge;
• a substantially L-shaped support piece connected onto said blade adjacent to said handle, said support piece having a part thereof perpendicular to said blade, the part being provided with a hole having multiple inner threads;
• a press piece consisting of a press seat, a horizontal upper portion and a vertical portion perpendicular to said upper portion, said press seat being dimensioned to match the part of said support piece with said hole and having an elongate slot, said vertical portion having a width greater than the width of said blade;
• and
• a rotary knob having a cap and a shaft projecting from a bottom of the cap, said shaft being dimensioned to match said hole of said support piece and having multiple threads matching said inner threads of said hole of said support piece, the shaft being passable through the slot of the press seat and threadedly engageable in said hole of said support piece.