🔧 Elevate Your DIY Game with Precision Drilling!
The ATOPLEE Cobalt Step Drill Bit is engineered from high-quality M35 HSS-Co material, featuring a 1/4 inch hex shank and 9 precision steps ranging from 4mm to 12mm. Ideal for drilling through tough materials like stainless steel and aluminum, this drill bit combines durability with versatility, making it a must-have for any professional or DIY enthusiast.
R**.
great metric stepped bit for harder steels
I've mostly used this to open holes in 1/8in mild steel to 10mm in tight spaces(inside a powered recliner). Between mine and another a coworker used, we've drilled out ~50+ off these holes for repair purposes with no degradation in cutting ability.I'm a believer in cobalt bits for constant steel use. Sure HSS will work for mild steel, but won't stay sharp nearly as long in my opinion. This bit also is much shorter than a lot of dedicated bits in the size range it covers which is also helpful for my purposes. Metric stepped bits are hard to find domestically so this had been great.
R**A
Top notch
Makes short work of 304 stainless steel, that's for sure! Very heavy duty and well made. Drills fast and especially handy if you need to quickly enlarge a hole, but don't require reaming accuracy.
T**7
Awesome
Works great for drilling holes in thin car sheet metal!
H**7
Same bit at hardware store would’ve been three times this price
Excellent bit high-quality hardened.
K**N
Good
Works as it's supposed to
L**N
works great
Works great.
D**S
Sux
Get a better set from harbor freight.... This things dull...
O**D
Broke on 1st use through mild steel.
Broke after 1st use drilling through mild 1\8" steel. Disappointed!
Trustpilot
3 weeks ago
1 week ago