Chain drilling and milling a slot tool, steel

Addison 34mm M2 HSS Tanged End Parallel Shank Slot Drill 4mm slot drill Buy Addison 4mm M2 Short Series HSS Screwed Shank Slot Drill with Right Hand Helical Flute & RH Cutting Online in India at price ₹1641 slot 369 login HARFINGTON T-Slot Milling Cutter 4mm Cutting 2mm Depth 4mm Shank Solid Carbide Titanium Coated 4 Flutes T Slot End Mill for Stainless Steel Alloy

wwan slot This next image shows the 4mm slot drill being used to machine an offcut of mild steel This was running close to maximum speed for the mill at