Pin block for carpet gripping devices

The present invention is concerned with a pin block for use with carpet gripping tools that comprise a plurality of downward extending pins that are canted towards the front of the pin block. Each pin is centered and supported in a pin support that forms an end surface thereby allowing only a pin tip to be exposed. Extending between each pair of pin supports is a fin that has a downward edge which is flush with the end surfaces of the pin supports to form a continuous contact surface that prevents the pin tips from penetrating through the carpet backing. Each pin block is adapted to stack together with other pin blocks to form ganged pin blocks to increase the gripping power of a carpet gripping tool comprising the present invention.