Ductsure Door Relief Vent Grille (Anodized Aluminium) – DG-A 600250 Insize 170° Protractor Range Series 4797-250 The Insize 4166-411 Metric Pin

The Insize 4166-411 Metric Pin Gage Set is designed for high-precision internal diameter measurements

Optional Accessory: Extension base (Code 6141)

Model No: 4100-147

250 mm Calibration Rod

Screw clamp terminal

Ductsure Door Relief Vent Grille (Anodized Aluminium) – DG-A 600250 Insize 170° Protractor Range Series 4797-250 The Insize 4166-411 Metric PinAluminium Door Relief Vent The Ductsure DG A 600250 delivers larger opening ventilation with precision construction and an anodized aluminium finish. Key Features: Part No: DG A 600250 Vent Facing Size (B B): 636 x 281 mm Internal Size (A A): 592 x 237 mm Configuration: Double sided design Max Hole Size for Hollow Doors (C C): 588 x 233 mm Max Hole Size for Solid Doors (D D): 630 x 275 mm Thicknesses: H1 = 36 mm, H2 = 37 mm Fitting: Snap fit