M35 Four Spiral Flute Step Drill Bit Set 1/8"-1/2" （13 Sizes ）,1/4" Hex Shank Drill, Impact Resistant M35 HSS Unibit Step Drill bit for Stainless Steel, Wood, Aluminum, Plastic
Details
- MaterialCobalt Steel
- Finish TypeTitanium
- Shank Type1/4" Shank
- Cutting Angle String135 Degrees
- BrandBOYOUYS
Description
🔩 Drill Smarter, Not Harder — Step Up Your DIY Game!
- UNMATCHED DURABILITY - M35 cobalt steel with TiAlN coating resists wear, heat, and pressure for long-lasting performance.
- VERSATILE SIZE RANGE - 13-step sizes cover all your drilling needs from 1/8" to 1/2", perfect for metal, wood, and plastic.
- HEX SHANK COMPATIBILITY - 1/4" hex shank fits most drills, providing secure grip and easy bit changes.
- PRECISION AT EVERY STEP - Four spiral flutes ensure smoother, faster drilling with efficient sawdust removal.
- CONFIDENCE WITH WARRANTY - 100% refund or replacement guarantee on hex shank breakage, plus responsive 12-hour support.
The M35 Four Spiral Flute Step Drill Bit Set features industrial-grade M35 cobalt high-speed steel with advanced TiAlN coating for superior wear and heat resistance. Its unique four-flute design enables faster, smoother drilling with efficient chip removal. With 13 sizes ranging from 1/8" to 1/2", this set is ideal for drilling through stainless steel, aluminum, wood, and plastic. The 1/4" hex shank ensures compatibility with most drills, backed by a 100% warranty on shank breakage and responsive customer support.
Have a Question? See What Others Asked
Reviews
D**E
its a step bit, it steps bits
Nice box, it's sharp, it held up to drilling a few holes, it was cheap, it worked. Good to have around, easier than changing regular bits multiple times to step up to a larger hole.
A**R
Efficient and convenient drill
This drill bit has been a fantastic addition to my toolkit. The material handles steel like a champ, cutting through metal smoothly without dulling too quickly. The spiral flute design helps with faster chip removal, which keeps the drilling process clean and efficient. I've used this bit on wood as wel, it performs consistently well. The 1/4" shank fits securely in my impact driver, making it super convenient. Highly recommended
A**D
Works great, as described.
Great product and material. I have already made a few tests on my house work and it is very trustworthy tool. It sharp to different kind of materials, easy to use and save time as you don’t need to be changing to different hole diameters you nedd.
W**R
The step drill did the job
I was opening up a 3/4" hole in 1/4" aluminum to 1". It did the job but it wasn't as clean as I would have liked. Perhaps that was the result of my technique (rotational speed, lubricant etc.)
M**S
Spiral Flute M35 Step Drill Bit Set 3/16"-1/2
Spiral Flute M35 Step Drill Bit Set 3/16"-1/2. Very functional spiral flute step drill bit. Very sharp and keeps its edge after multiple uses. Easy to use and to gauge drill depth. Fantastic value for the money. Will buy again and recommend to others.
D**J
They look impressive
The biggest one will not cut the hole that I need! When I unboxed them I had a thought that they have been used already. I definitely need a replacement
M**R
Great little bit!!
Great little bit!! As you might expect this tool works great for drilling different size holes without changing bits. Check the sizes you need but if this fits the bill then get it. This one has 5 different sizes. It seems to be really tough and sharp! Slides into my drill with easy and for the money I paid, a deal!
A**N
Great product.
Works amazingly I wonder just how many times I can use it before it dolls but it works.
Common Questions
Trustpilot
4 days ago
1 day ago
