Drilling Stainless Steel With Carbide

Pro drills all steel con blunt tip requires extreme pressure.

Drilling stainless steel with carbide. In high speed steel hss drills this heat will cause the tool to lose its hardness. Drill mild steel some spring steel some tool steel no drill hard plate anti drill plate 440c stainless steel pro good for hand drills and most drilling applications con has limits with hardened steel carbide tipped will drill almost any steel hard stainless or mild. With carbide drills always check the manufacturers recomendation on what drilling cycle you should run. We usually get 300 400 holes from a cheap 4 dollar cobalt drill.

It s used mostly for production drilling where a high quality tool holder and equipment is used. In solid carbide drills microcracks can form on the cutting edges which will eventually cause the drill to fail. Drilling stainless steel is not as. Choose from our selection of stainless steel cutting drill bits including over 5 800 products in a wide range of styles and sizes.

Wkstool φ4mm micro solid carbide drill bits straight shank tialn coated metric for stainless steel alloy and hard steel ø4mm 25mm flute length 50mm full length for steel 4 4 out of 5 stars 22 12 00 12. When stainless steel work hardens it becomes very hard and extremely difficult to drill. This is a great option for drilling into harder steel as well as stainless steel grades. Carbide carb is the hardest and most brittle of the drill bit materials.

Cobalt hsco is considered an upgrade from hss because it includes 5 8 cobalt blended into the base material. Here is the right way to drill stainless steel. I set my drill press to its slowest speed or run my portable drill as slow as the trigger will allow. For extra long drills reduce speeds and feeds by 30 50 316l ss.

When you machine stainless steel you are generating high temperatures explained scott turner marketing manager holemaking seco tools. We recently tried an inox drill in 304 stainless steel and we are getting close to 400holes but that drill is 30 dollars. In this video i will show you how to drill stainless steel with regular drill bits and hole saws. This article gives suggested feeds and speeds for drilling and reaming taken from the bssa stainless steel specialist course training note no9 machining stainless steels.

The first peck is the drill diameter plus half then the drill diameter on all subsequent passes. Start with a sharp drill and have it turning as slowly as your drill or drill press will allow.