Coarse UNC pitch's : 1/4", 5/16", 3/8", 7/16", 1/2" & 9/16".
6x SAE Imperial UNC coarse re-threading thread repair tap set size 1/4" to 9/16"
5/16" x 18 tpi SAE Imperial UNC coarse re-threading thread repair cleaning tap
1/4" x 20 tpi SAE Imperial UNC coarse re-threading thread repair cleaning tap
3/8" x 16 tpi SAE Imperial UNC coarse re-threading thread repair cleaning tap
1/2" x 13 tpi SAE Imperial UNC coarse re-threading thread repair cleaning tap
7/16" x 14 tpi SAE Imperial UNC coarse re-threading thread repair cleaning tap
