ITEM NAME:Aluminum Threaded Watch Back Case Dies Set of 25 Repair Tool W8J6 Aluminum Threaded Watch Back Case Dies Set of 25 Repair Tool W8J6 Item Type: Repair Tools & Kits Type: Tools Feature: watch press dies Aluminum die set for case closers and crystal presses. Set of 25 reversible aluminum dies include 14 straight walled and 10 flat dies that have been smoothed to a high polish to prevent scratching. There is also an additional bow shaped (hour glass) die for use with watch crystals that have magnifiers. Dies are threaded and screw onto the watch case press Threaded aluminum dies 25 reversible dies 14 walled dies (17#19# 21# 23# 25# 27# 29# 31# 33# 35# 37# 39# 41# 44#) 10 flat dies (12# 17# 19# 21# 23# 25# 27# 29# 31# 33#) 35mm hour glass die for magnifiers Material: Aluminum alloy color:silver Package Contents: 25 * Watch Back Case Dies Set Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.