Chestnut's friend

A tool comprising:

• a base, an inverted U-shaped support attached to the base, a plunger mounted in the inverted U-shaped support, and cutting blades attached to an end of the plunger which faces the base;
• the base comprising:
• a top surface, a bottom surface, and a front surface;
• a round shaped well at the center top surface;
• and two screw openings collinear to the well;
• the inverted U-shaped support comprising:
• a top section;
• a hole positioned in the top section;
• a screw connected at the bottom of each one of a leg of the inverted U-shaped support;
• and
• a ledge formed at the bottom of the hole positioned in the top section;
• the inverted U-shaped support attached to the base by the screws connecting with the screw holes in the base;
• the plunger comprising:
• a shaft;
• a sleeve, the shaft fitting into the sleeve, the shaft free to move in the sleeve;
• the sleeve having a partially closed opening in a top end;
• and being completely open at a bottom end;
• a spring, the spring fitting around the shaft, and located in the sleeve;
• a striking knob connected to a top end of the shaft;
• and a bumper on the end of the shaft opposite the striking knob;
• the cutting blades comprising:
• four cross blades attached to the bumper, positioned to face the well in the base of the tool;
• wherein when a chestnut is placed in the well, the tool operator pushes on the plunger against the bias of the spring and transfers the pushing force through the shaft to the blades to pierce the chestnut and prevent it from bursting while roasting.