Pick assembly with integrated piston

A pick assembly, comprising:

• a rotatable drum comprising at least one block disposed on a circumferential surface of the drum;
• the rotatable drum comprising a cavity comprising a cylinder;
• the at least one block comprising a first end and an opposing second end wherein the second end is disposed within the cavity;
• a pick comprising a working end is rigidly secured to the first end of the at least one block;
• and
• the second end comprising a piston that is slidably retained within the cylinder.

A method of milling a surface with a pick assembly, comprising:

• providing a rotatable drum, a plurality of blocks disposed on a circumferential surface of the drum, and at least one pick disposed within each block;
• providing a piston cylinder device within each block or each pick capable of expanding or retracting each block or each pick independently;
• and
• sending an electrical signal through a single armored coaxial wire to independent piston cylinder devices instructing the piston cylinder devices to expand or retract independently.