What are cobalt drills Good For?

The ability to withstand heat means that cobalt bits perform for long periods without cooling or the need for cutting fluid. They are most often used to cut through hardened and abrasive materials. Cobalt bits are able to cut through the most hardened metals, including bronze, cast iron, stainless steel and titanium.

Are Split point drill bits better?

Falling into the speed bit category, split-point bits almost completely eliminate “walking.” The shaft of a quality split-point bit features three grooves that lift away debris, allowing you to drill holes faster and with less chance of snags.

Which is better drill bits or cobalt?

Difference Between Cobalt and Titanium Drill Bits Cobalt drill bits are more expensive, but offer longer life, and are more resistant to heat than titanium drill bits. Cobalt drill bits are also tougher and can drill holes in the hardest metals.

Which is better M35 or M42 cobalt?

The added advantage of M35 cobalt drill bits is that they can be used in a hand held drill without too much fear of breakage. An M42 (8% cobalt) drill bit will drill harder metals however will also be more prone to breakage due to its inceased brittleness.

What makes a split point drill bit better?

Split-Point Drill Bits. Falling into the speed bit category, split-point bits almost completely eliminate “walking.”. The shaft of a quality split-point bit features three grooves that lift away debris, allowing you to drill holes faster and with less chance of snags. These grooves continue all the way to the tip of the bit,…

Which is the toughest cobalt drill bit to buy?

The M42-rated bits are made from an alloy of steel and 8 percent cobalt, making it one of the toughest sets of cobalt bits you can buy. Loose bits will eventually become lost bits.

Which is the best drill bit for cast iron?

1 BEST OVERALL: DEWALT Cobalt Drill Bit Set with Pilot Point 2 RUNNER UP: IRWIN Drill Bit Set, M35 Cobalt Steel 3 UPGRADE PICK: Drill America 20 Piece M35 Cobalt Drill Bit Set 4 BEST FOR CAST IRON: Bosch CO14B Cobalt M42 Drill Bit Set 5 BEST FOR STAINLESS STEEL: CO-Z 5pcs Hss Cobalt Multiple Hole Step Drill Bit

How can you tell if a bit is a split point?

Determine if a bit is a split-point bit by closely examining either the image of the bit or the bit itself. The tip should never have an unbroken circular cap. The surface of the bit tip should appear cut into, creating a shape not unlike a pinwheel.