The Milwaukee SHOCKWAVE Impact Duty Electrical Step Bits are engineered to deliver the most durable and fastest impact step bit hole drilling solution. The step drill bits are global materials and deliver best-in-class performance in impact drivers with the versatility to be used in drills. The hex shank has an optimized SHOCKZONE body providing the industry’s most durable shank, reducing early shank breaks. A Titanium Aluminum Nitride (TiAlN) coating delivers 5x longer life, while the step drill bit’s Rapid Strike tip and dual spiral flute produce 2x faster holes. The step drill bit kit features the #1 1/8 – 1/2 in., #4 3/16 – 7/8 in. and #9 7/8 in. and 1-1/8 in. step bits with laser engraving for a clear stop on size identification. The MILWAUKEE 15-piece Cobalt RED HELIX Drill Bit Kit is engineered for extreme durability and long life in hard metal applications. The drill bits are designed with Variable Helix featuring an aggressive 35° Helix Angle ending at 15°. This allows for Rapid Chip Removal, limiting heat buildup to stay sharper longer. The 135° split point bit tip delivers a precision start and prevents walking for fast, accurate holes. The heavy-duty drill bits are ideal for tough applications and provide Up to 10X life vs Black Oxide drill bits. The bits in the kit can be used in all twist drilling applications.
- Milwaukee SHOCKWAVE impact duty electrical step drill bit kit is optimized for impact drivers, drill/driver compatible, give 5X longer life, 2X faster holes
- Titanium Aluminum Nitride (TiAlN) coating delivers 5x longer life than competitive impact step bits
- Rapid strike tip provides fast and accurate starts
- Dual spiral flute combined with the rapid strike tip delivers up to 2x faster holes than competitive impact step bits
- Optimized Shockzone reduces early shank breaks
- Global materials
- Laser engraving for clear stop on size identification
- 48-89-9257 Includes: (1) SHOCKWAVE impact duty step bit #1 1/8 in. – 1/2 in. (48-89-9241), (1) SHOCKWAVE impact duty step bit #4 3/16 in. – 7/8 in. (48-89-9244), (1) SHOCKWAVE impact duty step bit #9 7/8 in. and 1-1/8 in. (48-89-9249)
- 48-89-2331 cobalt drill bit set includes: 1/16 in., 5/64 in., 3/32 in.,7/64 in., (2)1/8 in., 9/64 in., 5/32 in., 3/16 in., 7/32 in., (2)1/4 in., 5/16 in., 3/8 in., 1/2 in.
- 48-89-2331: Up to 10X Life vs. black oxide
- 48-89-2331: RED HELIX design for rapid chip removal
Marcella Kemmer (verified owner) –
Broke on first attempt to use.
Elenor Keebler (verified owner) –
Very Good product
Palma Ruecker (verified owner) –
They are good quality.
Jackeline Hessel (verified owner) –
Best drill bits for metal I’ve ever used
Stan White (verified owner) –
it was very useful to me
Mozelle Olson (verified owner) –
For jobs were metal is involved they do the job
Candace Romaguera (verified owner) –
didn’t buy the drill, just the bits. they work fine so far.
Lavinia Reilly (verified owner) –
Great value compared to buying the bits separately. They drilled through 1.5″ of steel with no problems. Highly recommend the kit.
Spencer Streich (verified owner) –
It’s construction, quality and power justify its cost benefit
Adolf Feest (verified owner) –
Super sharp long lasting bits. I use them every day.
Pattie Mueller (verified owner) –
Heavy duty drill bits. Use with cutting oil, and they will last a long time.
Ariane Crooks (verified owner) –
Cobalt is a must for steel operations…get the right tool for the job
Layla Braun (verified owner) –
Cut through steel like with ease!
Gordon Hessel (verified owner) –
When I got the set home I realized that the drill bit set has been used and returned. Not happy
Dakota Gaylord (verified owner) –
drilled through stainless steel no problem
Carlos Heller (verified owner) –
Outstanding bits for drilling through hard metals. Worth the money.
Amelia Kautzer (verified owner) –
I’ve had these bits for a couple weeks now and they have worked as expected on multiple types of metal. The case is very nice and functional. These bits are great at not walking when first starting and they get a good bite into metal. I haven’t had any break so far and they seem sharp still. These meet my expectations and I don’t have anything to dislike about them. Please hit thumbs up if this was helpful.
Filomena Hintz (verified owner) –
You can cut stainless steel with these. Remember to keep your RPM’s low or you will burn them up. Lube helps.
Lina Frami (verified owner) –
Chews through metal like butter
Alf Hauck (verified owner) –
I tried Black Oxide bits but they weren’t up to the task, then I tried Titanium bits but only succeeded in breaking the bit. I then went back and bought the Cobalt set and they got the job done in twenty minutes.