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⚡ Drill like a pro, conquer any metal challenge!
The BOSCH CO2137 cobalt drill bit is engineered for professionals tackling hard metals. Featuring a 135° split point for precise starts without walking, a thick web for enhanced stability, and surface hardening to penetrate abrasive materials, it excels in drilling stainless steel, titanium, cast iron, aluminum, and high-carbon steel. Heat-resistant up to 1100°F, this jobber-length bit delivers durability and efficiency in demanding applications.
| ASIN | B000AESUDU |
| Best Sellers Rank | #11,056 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #24 in Jobber Drill Bits |
| Brand | Bosch |
| Brand Name | Bosch |
| Customer Reviews | 4.7 out of 5 stars 8,089 Reviews |
| Cutting Angle String | 135 degrees |
| Cutting Diameter | 3.97 millimeters |
| Finish Type | Brushed |
| Finish Types | Brushed |
| Global Trade Identification Number | 00000346333497 |
| Included Components | ... |
| Item Dimensions | 0.16 x 1.75 x 5.9 inches |
| Item Type Name | 5/32" COBALT SP JOBBER DRILL BIT (CARDED) |
| Item Weight | 8.53 g |
| Manufacturer | Bosch |
| Material | Cobalt |
| Material Type | Cobalt |
| Minimum Bore Diameter | 0.16 inches |
| Model | CO2137 |
| Number of Flutes | 2 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Part Number | CO2137 |
| Point Style | Split Point |
| Shank Type | 3-Flat |
| Surface Recommendation | Stainless,Aluminum,Cast Iron,Metal,Steel |
| Tool Flute Type | Spiral |
| UPC | 000346333497 |
| Unit Count | 1 Count |
R**.
Worked great
I used this to drill a hole in 1/4" thick 316 Stainless Steel. I used canola oil to lubricate. This drill bit cut quickly and cleanly after using a 1/8" bit to drill a pilot hole.
F**Y
Great value
Did the job and very good quality.
R**H
Worked great, drilled 48 holes in 1/8 inch thick aluminum.
Used this drill bit to drill 48 holes in 1/8 inch thick 1-1/4 inch x 1-1/4 in aluminum square tubing. Worked great!
G**T
Perfect for Automotive Techs
Had a stripped and destroyed lug nut over a stud, tried other drill bits and they burnt out before i could get close. These drilled through the whole thing within a couple of passes and they actually last. If you’re drilling out hard metals these are awesome.
J**S
Good drill bits but nothing amazing yet.
I haven't had a chance to really use these yet. I have a set of older bits I am trying to use up before breaking into these new bits. I have used it a couple times and I wasn't as impressed with the drill speed given other reviews and videos on them. I think they did just fine and better than most but not by a large or even meaningful difference. I haven't used it on a lot of material types, so it may be better suited for something I haven't tried yet.
D**D
Cobalt bits
Bits are sharp and keeps a good point. It’s hard to find drill bits that last.
T**N
Well made
Thick, strong, durable, and well made drill bits. Easy to use and quite versatile.
C**R
Loader
I need a new hobby, guns have become way to popular!
V**M
Five Stars
great
K**R
Sharp and accurate!
Sharp, stayed sharp, cut through 10mm HDPE over 100 times like butter. Great tool bit.
M**X
Excelente filo y durabilidad
De lo mejor que he probado en brocas de recubrimiento de cobalto. Sin considerar aceros de gran dureza, tiene un excelente desempeño de corte y velocidad, puedo suponer que por el ángulo de ataque de la broca. Mayormente la he usado en taladros de banco de 3/4 HP y aceros, hierros e inoxidables. Recomendado al 100%
E**T
Excellent
Excellent
M**L
excelentes
Excelentes brocas, sin problema alguno para perforar metales
Trustpilot
1 month ago
1 month ago