•  3/8" steel spikes fully welded in a timed scroll pattern on a heavy walled roller with two 160 lbs. compression springs
•  12" (59.4 lb/ft) frame beam
•  Reversible heat treated 1/2" x 2" shanks
•  3 point linkage, cat. 1
•  6 5/8" diameter spiked roller tube
•  Self aligning 1" bearings on roller
•  Formed plate “A” frame