Marples Beech Pencil Gauge with Curve Scribing Attachment 15 Stepped jaws greatly extend range

Stepped jaws greatly extend range of taps each wrench will accept

5mm thick high-carbon steel with 16 teeth per 25mm (16tpi)

while the included 12" extensions increase this range up to 72"

150mm (6") Moore & Wright Outside calipers

or specialized clamping setups

Marples Beech Pencil Gauge with Curve Scribing Attachment 15 Stepped jaws greatly extend rangeExpertly made in Sheffield by Joseph Marples, this versatile Half Round pencil gauge is made from durable beech and fitted with solid brass locking screws. Featuring a double curve attachment, its perfect for marking accurate parallel lines along both straight edges and curved (convex or concave) surfacesan essential tool for precision layout work in any woodworking shop. Guage is made from good quality beech with durable and decorative brass