8. Hex but
a. Move away the drilling bit or lift the gearbox to the utmost point.
b. Using brush, clean the worktable and the vise surface.
c. Clean the vise surface using clean rag.
d. Position the work piece on the vise surface. If it is piercing drilling, please insert a block
under the work piece so that drilling into vise can be avoided.
e. After screwing the T shape chamfer nut to the twin head bolts with suitable length, put
it into the T shape chamfer of the worktable or the base.
f. Choose the insertion block or ladder block that is the same high as work flange. Put
them in the other side of the bolts.
g. Using holed stacking block, place them onto the bolts, with one of its side pressing the
work flange and another pressing the insertion block or ladder block, then tighten it
with hex nuts.