offset the slots 50 52 78 and 79 in the looper bar 54 for manufacturing simplicity are cut into the looper bar the same depth along the line of feed thus the loopers 48 include an undercut at 96 so that the loopers 46 and 48 may be otherwise identical and the loopers 60 include the undercut 74 the depth of the undercut 74 and 96 being substantially equal to the offset or stagger between respective adjacent loopers the apparatus thus far described produces a fabric as illustrated in fig1 wherein the needles 26 produce the concatenated loops l 1 and the needles 28 produce the concatenated loops l 2 this product has exceptional coverage for the weight of yarn utilized and when the larger size yarns are tufted the product provides a berber or crewel effect with full coverage and no portions of the base fabric visible moreover when heavier yarns are tufted one leg of each loop overlies the other leg depending upon the twist of the yarn and gives a knitted appearance and with certain yarns a herringbone appearance thus attractive patterns can be produced by the utilization of yarns having different weights sizes twists etc another aspect of the present invention is the provision of the second set of staggered needles 30 32 which cooperate with another set of loopers 98 and 100 respectively the loopers 98 and 100 being conventional loop pile loopers such as the loopers 46 and 48 and have bills which point in the direction the fabric feed the loopers 98 and 100 are mounted within slots 102 and 104 respectively in the looper bar 54 at substantially the same downstream location as the loopers 62 and 64 but the slots 102 are substantially.