With ratchet stop, dull C.P. gun metal body and nicely threaded oxidised or C.P. Rod. English Pattern, most accurate
Size 10 mm 15 mm 20 mm 25 mm
Pitch 1 mm
Pitch 1/2mm

Same as Cat. No. 323 provided with stainless steel rod
Size 10 mm 15 mm 20 mm 25 mm
Pitch 1 mm Pitch 1/2 mm

Moore and wright type, sand blast finish with lock arrangement, in velvet lined case. Most accurate for precision & industrial use.

20 cm long, made from aluminium silver alloy, round body superior.