in fig1 until the arbors are full from the inner shoulder 34 to the outer shoulder 19 of the arbor fig2 shows a sectional view of a full arbor 12 near the open end 36 of the arbor once the arbor 12 is full of tooling 30 the nut 10 is inserted upon the open end 36 of the arbor with the flanges 14 on the nut 10 lining up with the spaces 38 between the flanges 16 on the arbor 12 the nut 10 is pushed onto the arbor end until pressure ring 22 preferably abuts arbor shoulder 19 this position is shown in fig4 and is the nut 39 s unlocked position the depth of flanges 14 are such that the flanges clear the root face 29 of collar 11 between flanges 16 the nut 10 is then turned 45 degrees to its locked position as show in fig5 so that the flanges 14 of the nut are then between the flanges 16 of the collar and shoulder 19 of the arbor 12 a hole 42 is provided in the side of the nut 10 in which a rod or spanner wrench may be inserted to assist in turning the nut 10 in the 45 degree rotated position shown in fig5 a grease gun is then used to force grease into groove 18 of the nut through fitting 40 the pressurized grease causes the pressure ring 22 to forcefully press against the tooling 30 thereby securing the tooling 30 in.