Dies suitable for producing discs of 3, 5, 6, 7, 8, 10, 13, 16, 20, 25, 32, 35 and 40 mm diameter as available as standard within the size range for the KB series. Non-standard sizes are available on request.

• All dies in the KB series are constructed entirely of stainless tool steel, and parts are precision machined
• Pellets are optically flat and mirror polished
• Tungsten carbide pellets and component parts can be supplied to special order
• Dies are supplied with black anodised sleeves

KBr Disc Technique: This widely practiced method consists of grinding and mixing a sample with dry KBr or KCl powder, which is then compressed within an evacuated die to produce a transparent disc, since KBr and KCl are transparent from the ultra-violet well into the infrared. The method may be used for investigation in the ultra-violet and the visible as well as the infrared region.