Saw guide for use with lined sheet material
Scale
Scale magnifier
Scanning electron microscopic ruler and method
Scientific ruler
See-thru engineering instrument
See-thru engineering instrument
Shaft compression packing ruler
Slip resistant ruler
Snap-on adaptor for architect's scale
Straight edge to facilitate holding and measuring and to...
Straightedge
Straightedge with handle and level
Strip counting gauge
Stud tape measure
Syringe dose identification system