Holders for Balance Screws 0.55 mm Omega® 471 hole size: 120/190 (minute/hour) *

hole size: 120/190 (minute/hour) * sold by the pair

0mm Tool Steel Dies come in a variety of sizes

19 x 450 (17 3/4")

Metric Die for Watchmakers 0

30 mm opening diameter of the inside ring

Holders for Balance Screws 0.55 mm Omega® 471 hole size: 120/190 (minute/hour) *Holders for Balance Screws 0. 55 mm is a specialized slide locking pin vise specifically designed to hold balance screws. Many of the older watches were designed with balance screws, which need adjustment to ensure an even oscillation of the balance wheel. This holder is designed to hold a balance screw with a head diameter of 0. 55 mm. Total length of this pin vise is 115 mm.