► Used to have smaller size or bigger size for already drilled holes
► Majority of metric and NPT threads are available
► Applicable for Zones 1/21 and 2/22
► Variety of sizes M16 to M100
► Adaptations: Metric to metric, metric to NPT, NPT to NPT and NPT to metric
► Thread sizes: metric M16 to M100, NPT 3/8″ to 4″