from the grooves 115 a 115 b 115 c 115 d it should be appreciated that the length of the planar sections 130 a for example may vary to permit the bolt holes 135 a 135 b 135 c to be offset from the grooves 115 a 115 b 115 c 115 d the invention is also directed to a blade insert 100 for use with jaws for demolition equipment wherein the blade insert 100 as illustrated in fig6 c has a generally rectangular body 165 with longitudinal axis l extending thereon and a width w extending thereacross the blade insert 100 is comprised of a top side 155 having a cutting surface 110 with grooves 115 a 115 b 115 c 115 d extending thereacross and with planar surfaces 130 a 130 b 130 c therebetween bolt holes 135 a 135 b 135 c extend through the width w of the blade insert 100 and are positioned along the longitudinal axis l at a location spaced from that of the grooves 115 a 115 b 115 c 115 d to provide maximum structural integrity of the blade fig7 and fig8 are schematic cutaway views along lines 7 7 in fig1 and lines 8 8 in fig2 respectively fig7 illustrates the small diameter pipe p in position with the first jaw 25 and the second jaw 30 opened fig8 on the other hand illustrates the small diameter pipe p after contact is made by the blade insert 100 and the blade insert 120 to begin the cutting operation it should.