Somta Series 712 – 1-5/8" HSS MTS Parallel Machine Reamer MTS No.4 Ductsure Door Relief Vent Grille (Anodized Aluminium) – DG-A 300150 and a long tool life

and a long tool life

Material & Finish: High-Speed Steel (HSS M2)

5  Taper (Fine)

To know what size the insert should be it refers to the last two digits in the code -  DTGNR2525M22meaning a TN-22 insert

Somta Series 712 – 1-5/8" HSS MTS Parallel Machine Reamer MTS No.4 Ductsure Door Relief Vent Grille (Anodized Aluminium) – DG-A 300150 and a long tool lifeSomta Series 712 1 5 8" HSS Machine Reamer MTS No. 4 7124128 The SOMTA 7124128 is a 1 5 8" HSS Machine Reamer featuring a Morse Taper Shank No. 4, engineered for precision hole finishing in heavy duty machining applications. Constructed from premium high speed steel, it delivers exceptional dimensional accuracy, surface finish, and tool life, making it ideal for reaming large pre drilled holes in ferrous and non ferrous materials. Key Features &