Black Oxide Step Drill Bit Set with Cobalt Drill Bit Set (21-Piece). Milwaukee Step Drill Bits with JAM-FREE Performance feature a dual-flute design delivering up to 2X faster hole times, up to 4X longer life and up to 50% more holes per battery charge than competitors. Ideal for drilling small and large-diameter holes in steel and plastic, these bits are Optimized for Cordless Drills in High Speed. The Rapid Strike tip allows for a fast and accurate start that generates less heat, resulting in longer bit tip life. Black oxide coating also enhances durability, hole quality and bit life. For user convenience and accuracy, each bit has laser-engraved reference marks you can see while drilling. The 3-flat Secure-Grip shank ensures a solid connection with the drill chuck. Milwaukee RED HELIX Cobalt Drill Bits are engineered for extreme durability and longer life in hard metal applications. The Milwaukee Cobalt drill bits are designed with a VARIABLE HELIX that includes an aggressive 35° Helix Angle which ends at 15°. The 135° split point tip delivers a precision start and prevents walking for fast, accurate holes in Hard Metal, PVC and wood.The tapered drill bits feature a new ENHANCED TAPERED WEB that strengthens the bit’s core to increase flute durability. The cobalt twist drill bits are ideal for tough applications, providing up to 15X life vs. Black Oxide Drill Bits.
- Cobalt alloy for up to 15X Life vs. Black Oxide Drill Bits
- ENHANCED TAPERED WEB strengthens the bits core
- VARIABLE HELIX Design for rapid material extraction
- 3-Flat Secure-Grip helps keep the bit fixed within the the chuck
- 30X longer Jam-free performance: dual-flute design optimized for cordless drills in high speed provides greater speed and control life
- Rapid strike tips for fast, accurate starts and less heat
- Laser-engraved reference marks for easily stopping on any hole size
- Cobalt Red Helix Drill Bit Set (15-Piece) Includes: (2) 1/16 in. cobalt drill bit, (1) 5/64 in. cobalt drill bit, (1) 3/32 in. cobalt drill bit, (1) 7/64 in. cobalt drill bit, (2) 1/8 in. cobalt drill bit, (1) 9/64 in. cobalt drill bit, (1) 5/32 in. cobalt drill bit, (1) 3/16 in. cobalt drill bit, (1) 7/32 in. cobalt drill bit, (2) 1/4 in. cobalt drill bit, (1) 5/16 in. cobalt drill bit, (1) 3/8 in. cobalt drill bit
- Black Oxide Step Drill Bit Set (6-Piece) Includes: (1) #9 Step Drill Bit, 7/8 in. and 1-1/8 in. (48-89-9209) , (1) #8 Step Drill Bit, ½ in. – 1 in. by 1/16 in. (48-89-9208) , (1) #7 Step Drill Bit, 7/8 in. Single Hole (48-89-9207) , (1) #6 Step Drill Bit, 3/8 in. and ½ in. by 1/16 in. (48-89-9206) , (1) #4 Step Drill Bit, 3/16 in. – 7/8 in. by 1/16 in. (48-89-9204) , (1) #1 Step Drill Bit, 1/8 in. – ½ in. by 1/32 in. (48-89-9201) , (1) Carrying Case
Oswaldo Heathcote (verified owner) –
Needed to remove a metal screw that had damaged head and the drill bit made it happen in record time for me.
Emely Effertz (verified owner) –
Finally I have bits I can drill through metal!,,
Nicholas Kunze (verified owner) –
i NEEDED TO DRILL OUT A HARDEN BOLT. MY DRILL BITS WOULD NOT DRILL IT OUT. THESE COBALT DID THE JOB WITH NO PROBLEM THESE ARE GOOD BITS.
Dusty Botsford (verified owner) –
You can cut stainless steel with these. Remember to keep your RPM’s low or you will burn them up. Lube helps.
Kiel Streich (verified owner) –
Used one of these bits to drill over 120 holes in mild steel. Used lots of oil and a drill press. The set is a good deal over buying bits separately and they double up on common sizes.
Kylee Macejkovic (verified owner) –
These bits worked perefect for drilling through my steel gate!
Kole Franecki (verified owner) –
Good
Bethel Prohaska (verified owner) –
Only used one step but seems to be of good quality.
Margarette Cruickshank (verified owner) –
I was not impressed by these bits, at this price. I couldn’t tell any difference from the cobalt and the less expensive titanium bits.
Nathan Borer (verified owner) –
These bits drill through broken screws and other metal like butter. I have always had a hard time drilling out screws etc. It would take a too long and be exhausting. I bought this set and now I have no problem, and they are very reasonably priced.
Don Dickinson (verified owner) –
For jobs were metal is involved they do the job
Kip Boehm (verified owner) –
Bought these to specifically drill through stainless steel at work. 1/4 inch drill bits didn’t work worth a crap straight out of the box! But all the other drill bits were amazing…Fix those 1/4 inch ones!
Leonie Nolan (verified owner) –
Great value compared to buying the bits separately. They drilled through 1.5″ of steel with no problems. Highly recommend the kit.
Burnice Kulas (verified owner) –
Used to drill into stainless steel table so we could add a shelf. Got the job done and the bits are still good for the next job.
Amber Graham (verified owner) –
work great on the project that i had, would buy again and recommend to others looking to drill metal.