These are new blocks. .0015 to .002 thousands over size on width and thickness, this is for fitting. The locking area is left square, no taper, installer must fit locking taper to barrel. Price is $42.50 ea. + shipping $5.50 USPS 2 to 4 day del. Made by Precision Replacement Parts Inc. We also have the fitting fixture for this block. $94.50 ea. We can combine shipping