Description
Insize Thread Plug Gage 1 4 20 UNC Class 2B Series 4643 1B1 BSP G Includes both top and bottom The Haron 63W plastic 3227 12 Acrow B.BSD.HD6.64 – Heavy Duty Insert Holder for BSD64 Fine Boring Heads Includes both top and bottom fixing hinge kit Graduation: 1mm and 1 32" on the front face