Model#: BSHNCSM180B

What are the different product conditions?

Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
Open Box
New or Recon items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Bosch CSM180B 18V Cordless Lithium-Ion 5-3/8 in. Metal Cutting Circular Saw (Bare Tool)

  • Note: Battery & Charger sold separately
Sale Price:
You Save
Free Shipping
(continental U.S.)
In Stock
Ships Today

Product Overview


An ideal tool for the mechanical, electrical, plumbing, and HVAC trades, the CSM180 18V Cordless Lithium-Ion 5-3/8 in. Metal Cutting Circular Saw (Bare Tool) has a motor built specifically for metal cutting applications. Its small size allows the saw to reach tasks and applications where others cannot. The ergonomic and balanced design allows the CSM180 to be used in difficult or sensitive applications, while a soft-grip handle makes this tool easier to hold, including over long periods of cutting. An integrated hook allows this saw to be hung virtually anywhere. Battery and charger sold separately.
  • Motor design is specific to metal cutting
  • Compact design for accessibility
  • Ergonomic, balanced design with soft-grip handle for decreased user fatigue
  • Integrated hook allows this saw to be hung virtually anywhere
  • Added peace of mind with 1 year warranty, or 3 years with ProVantage
  • 18V Cordless Lithium-Ion 5-3/8 in. Metal Cutting Circular Saw (Bare Tool) - CSM180B
  • (1) Blade Wrench
  • (1) 5-3/8-inch Metal Cutting Blade
  • Bare Tool - Batteries and Charger Sold Separately


Cordless: Yes
Length: 14 in.
Height: 6.5 in.
Weight: 4.25 lbs.
Arbor Size: 20mm
Batteries Included: Bare Tool
Battery Type: Li-Ion
Blade Diameter: 5-3/8 in.
Blade Position: Right
Depth of Cut at 90 Degrees: 2 in.
RPM: 0 - 4,250
Voltage: 18V



5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Yes, I would recommend this to a friend (1)
Yes, I would recommend this to a friend
Holy smokes! This thing cuts steel like nobody's business. I was a bit hesitant to purchase a relatively expensive tool with no prior reviews, but I own a ton of Bosch tools and figured I'd give it a shot. I'm quite glad that I did (I'm using / sharing the battery from my 18v reciprocating saw).
I cut a lot of mild steel flat stock ranging from 1/8" up to 3/8", and this saw had absolutely no problem cutting anything that I took it to. When not cutting, it's super quiet - almost seems to be moving too slowly to cut metal. When cutting, it can be pretty loud, but it's not really a big deal since it cuts so fast. A 3/8" x 3" bar took less than ten seconds to cut, and I was definitely not pushing the saw to its limit. Good purchase!
December 3, 2015
Love this saw!
It's one of the best thing i've purchase from bosch. Just love the way it cuts emt pipes
July 19, 2017
Originally posted at

Questions & Answers

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 3 questions Browse 3 questions and 4 answers
Can I use this saw to cut more than metal? With a proper blade, will it cut 2x4's, plywood, etc.?
the cat on May 25, 2016
BEST ANSWER: The saw is designed specifically to cut metal.
Can it be used to cut shallow/deep unistrut?
BUBBLES on Mar 3, 2016
BEST ANSWER: Yes,this saw will cut unistrut up to 2-3/4"
Will this saw run on a Bosch 18v 2.0Ah 36Woh BAT 612 battery?
Wayne G on Dec 3, 2016