Insize Taper Slot Gauge 0.4–6mm Series 4630-3 Insize Imperial Outside Micrometer 4-5" Range Series 3203-5A This versatile kit includes a Sandvik HSS-PM Blue Spiral Flute PVD FeN coated Tap 3/8" UNC uninterrupted cutting process in 1138-200

This versatile kit includes a comprehensive range of 32 popular O-ring sizes

Insize 2-40" Inside Micrometer

Bright or Oxide Finish – Improves chip evacuation and surface finish

To know what size the insert should be it refers to the last two digits in the code -  DTGNL2020K16-N meaning a DN-15 insert

Introducing the Test-Tite 40mm T Cone Cleanout Repair Plug—the perfect solution for anyone dealing with damaged or corroded cleanouts

Insize Taper Slot Gauge 0.4–6mm Series 4630 3 Insize Imperial Outside Micrometer 4 5" Range Series 3203 5A This versatile kit includes a Sandvik HSS PM Blue Spiral Flute PVD FeN coated Tap 3 8" UNC uninterrupted cutting process in 1138 200 This versatile kit includes a comprehensive range of 32 popular O ring sizes Insize 2 40" Inside Micrometer