The Grid is used to align Guide Tubes for straight and accurate alignment.

• Holes are 1 mm apart in a rectangular array within a 19 mm diameter.
  • Accurate alignment is accomplished by the 1 cm long guide holes.
• The Offset Grid is identical to the Standard Grid - except the holes are offset .5 mm in one direction within the array.
  • The direction of the offset is indicated by a missing hole near the perimeter of the grid.
  • When used in conjunction with the Standard Grid it provides three times as many penetration points when the offset is rotated 90 degrees