Self-Centering Drill Press JigSimply set this self centering jig in your drill press bolt it down and the bit will always hit center with no marking or center punching required! The self centering jig takes the guesswork out of centering tubes pipes dowels or any other round stock. The jig features a heavy duty extruded aluminum construction and convenient ruler markings.Heavy-duty extruded aluminumRuler markingsEasily installed on your drill pressSpecificationsName Self-Centering Drill Press JigSKU 92046Brand ToolsMaterial Heavy Extruded AluminumQuantity 1Product Length 5 in.Product Width 4-7/16 in.