The set of five small rules together with a new improved holder is extremely useful for measurements in confined or hard-to-reach locations. They are especially suitable for measuring grooves, short shoulders, recesses, keyways, etc. The rules are easily inserted in the slotted end of the holder and are rigidly clamped in place by a slight turn of the knurled nut at the end of the handle. Two slots are provided permitting the rules to be held in the holder at 30 or 45°, either square in a slot or tipped to one side. No. 10 Graduation. Furnished in attractive protective case.
