FAQ's: Metal Working Drills

Cobalt bits are solid alloy and great for hard metals. Titanium bits are coated HSS—good for general use but coating can wear off.

Yes. Lubricants like cutting oil reduce heat and friction, extending bit life.

Slower speeds for harder metals, faster for softer metals. Keep it cool with lubricant.

Use the correct bit, slow drilling speed, steady pressure, and cutting oil to reduce heat.

Yes. Stainless steel is hard—use cobalt or carbide bits with slow speeds and proper lubrication.

Not recommended. Wood bits dull quickly on metal and may break. Use bits specifically made for metal.

Cobalt bits are best for hard steels, while HSS with titanium coating works well for mild steel.

A drill bit made from high-speed steel, cobalt, or carbide designed to cut through metal with the right speed, feed, and lubrication.