Watch Hand Broaching Tool Watch Hand Broaching Tool Horotec is a specialized jig to hold watch hands when enlarging hole sizes. Put the watch hand between the two disks with holes, align the hole of the watch hand with the hole of the broaching tool, then tighten. This allows you to hold the hand while using a cutting broach to increase the hole size of the watch hand, without bending or breaking the watch hand. The disks of this Watch Hand Broaching Tool has 10 holes. This is an Economical Quality product.