Carmex Internal UN Threadmill Insert 21mm / 8 TPI / 21 I 8 UN MT7 Insize Feeler Gauge Tape 0.35mm Range Series 4621-35 Size Range: 1

Size Range: 1

confirming that the component will assemble correctly within specified tolerances

300mm Machinist’s Ruler

Wide base design provides enhanced stability and ease of use

6" Outside Diameter Range

Carmex Internal UN Threadmill Insert 21mm / 8 TPI / 21 I 8 UN MT7 Insize Feeler Gauge Tape 0.35mm Range Series 4621-35 Size Range: 1Mill Thread Insert UN 8 TPI, Internal The Carmex 21 I 8 UN MT7 is a premium quality internal thread milling insert engineered for cutting Unified (UN) 60 thread profiles with a 8 TPI pitch. Designed for CNC milling machines using helical interpolation, this insert delivers precise, consistent, and smooth thread production across a variety of materials and component sizes. Crafted from MT7 ultra fine carbide, the insert provides outstanding hardness,