G&J Hall Type 313 Combined Drill & Tap

G&J Hall Type 313 combined drill and taps are suitable for general use in under pressure machines for the installation of feed connections in Gas and Water Mains; common makes of machine are Talbot, Peart/Pass, ALH and Wask. Hole saw drill taps have a carbon steel tap and are fitted with a special HSS hole saw. This design allows holes to be drilled and tapped very quickly with less effort than is required with other styles.design allows holes to be drilled and tapped very quickly with less effort than is required with other styles.