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EZARC Step Drill Bit for Metal, M35 Cobalt Unibit Step Drill Bit Set 1/8'-7/8'(3pcs) Wear-Resistant AlTiN Coated, 1/4' Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

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$64.97

$ 26 .99 $26.99

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About this item

  • 【C-Profile Design】EZARC step drill bits feature a triple-flute design for increased stability, effectively reducing deviation during the cutting process. Additionally, the 'C-profile' cutting edge ensures smoother cutting and an increased cutting speed
  • 【M35 HSS Step Drill】M35 cobalt high-speed steel, through heat treatment, achieves toughness and bending strength that surpass standard high-speed steel, making this step drill bit more suitable for cutting hard materials
  • 【AlTiN Coating】Step bits coated with aluminum titanium nitride, rated at 89HRC for exceptional hardness and thermal properties. This coating offers superior resistance to heat, wear, and corrosion, with high adhesion and low friction
  • 【3 Pcs Step Drill Bit Set】 The step drill bits are neatly organized in a compact case for easy transportation and storage. The spiral flutes and stepped design of the drill bits allow for seamless and efficient drilling through various thicknesses.
  • 【Please Note】Material thickness: Suitable for metal sheet up to 1/8" (3 mm) thick and stainless steel sheet up to 1 mm thick. Add cutting oil or use coolant during continuous operation. Due to the larger cutting angles, the startup speed may be slower



Product Description

EZARC M35 AlTiN COATING STEP DRILL BIT SET

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
step drill bit
step drill bit
  • AlTiN Coating, with a hardness of 89 HRC, offers excellent hardness and thermal properties. It provides great resistance to heat, wear, corrosion and can withstand temperatures up to 900°C.

  • You can use EZARC step drills to cut or drill through various metals, including aluminum, brass, copper, cast iron, galvanized pipe, stainless steel, and low-carbon steel.

  • Ensure the chuck is securely tightened on the power tool. Use low speed and apply light pressure on the workpiece until reaching the desired depth. Lubricate the cutting edge with oil or a water-soluble lubricant to reduce friction, heat, and debris.

  • Suitable for metal sheet up to 1/8" (3mm) thick and stainless steel sheet up to 1mm thick.


Mike P.
Reviewed in the United States on February 8, 2025
Did not work well. At 1/2" and beyond, the bit was dull and the drill press actually stopped because it could not cut the metal. The protective covering wore off after 10 uses. The tip showed excessive wear after about 20 uses. I was drilling 1.5mm thick hammond aluminum enclosures with a harbor freight press. On the fifth use drilling to 9/16", the bit was so dull that the drill press stopped. I switched back to my old titanium bit that was pretty worn and it handled the remaining work with no problems. Maybe I got a bunk one, but the cheapo harbor freight bits work much better than the one I got.
Sarg710
Reviewed in the United States on January 6, 2025
Work well fair cost.
John S
Reviewed in the United States on January 20, 2025
Hard plastic caseDrilled holes in 4” square tubing easilyWill see how long they stay sharp
Mary Margaret Nixon
Reviewed in the United States on September 12, 2024
Drilled through 1/4" mild steel like a hot knife in butter. Seems to stay sharp, drilled 12 holes, last one just as easy as first.
Bob
Reviewed in the United States on September 1, 2024
I bought this dehumidifier trying other products, but this one was really good lot of the moisture humidity out of the house very satisfied with this product would recommend it to anyone
Aberdeenshire buyer
Reviewed in the United Kingdom on December 28, 2024
At time of review not used, but they come as per description as good quality and boxed. Son works in the plant maintenance field and I have no doubt they will be a worthy purchase.
Capital One Visa
Reviewed in the United States on November 5, 2024
i ordered wrong size first, easy return from amazon. ordered right size and it cut like through butter.
david mcmichael
Reviewed in the United States on November 30, 2024
this product did what it needed to do to get through metal, using my drill. It did take a while with my drill to get through but worked great. I do recommend this product
Clinton Massey
Reviewed in the United States on November 10, 2024
If you’re used to using a traditional coded high speed step bit, this might not be your best option because it’s very aggressive in cutting material and can takeoff on you making the holes bigger than you want.It uses three flutes instead of twoThe quality is a bit packaging presentation and some of the markings on the tool are really nice but just be aware this bit is no game. You’ll just need good depth control. And don’t let an inexperienced driller use this on anything hard material because a bit grabbed so much. It will twist the drill right out of your hand. However, I think it’ll have a good service life compared to the inexpensive titanium coated high-speed bit you get from Harbor Freight or Amazon. I only drilled a couple holes with it and the black oxide coating or whatever it is stayed on.I am happy with this but me personally, I need something that drill, slower and less aggressive because I don’t have a drill with a T handle on it.But I’m gonna tell you again for a drill bit it really did the job and I was happy with that aspect.
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