Ductsure Door Relief Vent Grille (Anodized Aluminium) – DG-A 400150 Insize Tubular Inside Micrometer 50-300mm Range Series 3222-300 it includes GO and NOGO Alberg Wedge Clamp or Double Lock Turning Tool Holder MCLNR3225P12 32mm/25mm Shank

Ductsure Door Relief Vent Grille (Anodized Aluminium) – DG A 400150 Insize Tubular Inside Micrometer 50 300mm Range Series 3222 300 it includes GO and NOGO Alberg Wedge Clamp or Double Lock Turning Tool Holder MCLNR3225P12 32mm 25mm Shank it includes GO and NOGO ends for precise inspection ✔ Thread Size: 1 8" NPT (National Pipe Taper)✔ Standard: ISO 2284✔ Material: High Speed Steel (HSS) for superior strength and wear resistance✔ Thread Form: 60° flank angle for precise and secure pipe threading✔ Tolerance Standard: ANSI B94 The Ductsure DG A 400150 is ideal for dependable airflow and moisture control in doors Material & Finish: Anodized Aluminium