Features 1、Applied to measure thread and external thread tooth pitch 2、The thread plug gage, through quenching processing, strong hardness, head with a magnetic 3、Using rotary switch can be freely adjusted 4、Easy to use, light and delicate, with precise measurements and simple design, which can be widely used and durable 5、It is useful for checking tool angle while cutting threads in metal turning lathes Specification Features: Applied to measure thread and external thread tooth pitch. The thread plug gage, through quenching processing, strong hardness, head with a magnetic. Using rotary switch can be freely adjusted. Easy to use, light and delicate, with precise measurements and simple design, which can be widely used and durable. It is useful for checking tool angle while cutting threads in metal turning lathes. Specifications: Material: Stainless Steel Type(Optional): US (51 pcs):60 * 60mm/2.36 * 2.36" Metric+ imperial (52pc): 67 * 20mm/2.63 * 0.78" Measuring rang: 0.25 - 6.00mm/0.0098" - 0.23" 51 pcs 60°US.system: 4,4.5,5,5.5,6,7,8,9,10,11,11.5,12,13,14,15,16,18,20,22,24,26,27,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84 52pcs 60°Metric/Imperial: 60°Metric:0.25,0.3,0.35,0.4,0.45,0.5,0.6,0.7,0.75,0.8,0.9,1.0,1.25,1.5,1.75,2.0,2.5,3.0,3.5,4.0,4.5,5.0,5.5,6.0 55°Imperial:4G,4-1/2G,5G,6G,7G,8G,9G,10G,11G,12G,13G,14G,16G,18G,19G,20G,22G,24G,25G,26G,28G,30G,32G,36G,40G,48G,60G,62G Package includes: 1 x Thread Measuring Gage Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List