M18 18-Volt Lithium-Ion Cordless 4-1/2 in. Cut-Off/Grinder (Tool-Only)
- 4-pole frameless motor for longer life, more power and run time
- Paddle switch for comfort when operating
- Fully compatible with the M18 system, featuring over 200+ tools
- See More Details
Frequently Bought Together
Product Overview
M18 System Metalworking Solutions
Professional grade power, extreme performance, and system compatibility.
200+ solutions on a single 18-volt cordless system
Featuring high performing, trade-focused solutions
MILWAUKEE M18 System
Game changing products for the professional trades like Plumbing, Electrical and many others
Performance Driven
Delivers the best-in-class performance
Trade Focused
Milwaukee is dedicated to the trades - providing professional solutions on one platform
System Compatibility
Tools on the M12 System – Fit all M12 Batteries
M12 Cordless Tool Technology
Provides tradesmen with unmatched levels of performance, protection, and productivity.
Grinders
Small to large angle grinders all on the same battery platform including the M18 FUEL 4-1/2" and 6" Grinder.
Magnetic Drills
The M18 FUEL 1-1/2" Magnetic Drill delivers the strongest hold on 1/4” steel for a safer drilling environment
Band Saws
The widest range of cordless band saws including the M18 FUEL Deep Cut Band Saw
Metal Cutting Circ Saws
The M18 FUEL 8" Metal Cutting Circular Saw delivers up to 120’ of cutting corrugated decking per charge
Shears
Man wearing work gloves makes a straight cut in sheet metal with an M18 Double Cut Shear.
Lighting
The M18 RADIUS Site Light delivers 60° coverage with 9,000 lumens.
- Milwaukee 4-Pole Motor- Delivers maximum power when cutting or grinding
- Overload Protection- Prevents damage to the tool and battery in heavy duty situations
- Debris Baffles - L-shape vents keep debris from entering the tool and damaging internal components to help increase tool life.
- Tool Free, Burst Resistant Guard- Allows for quick, easy guard adjustments. Easy to access and actuate too free guard makes it easier and less time consuming to adjust the guard for various applications.
- Paddle Switch Design- The only cordless cut-off /grinder in the market with a paddle switch design
- Up to 35% faster cutting speed
- Up to 50% more cuts on a single charge
- 3-Position Side Handle- Provides optimal Control and Versatility
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Info & Guides
Product Overview
- 4-pole frameless motor for longer life, more power and run time
- Paddle switch for comfort when operating
- Fully compatible with the M18 system, featuring over 200+ tools
Compare Similar Shop Tool Gift Savings
 | |  |  | |
| Brand | Makita | Milwaukee | Makita | Milwaukee |
| Name | 7.5 Amp 4-1/2 in. Paddle Switch Angle Grinder | M18 18-Volt Lithium-Ion Cordless 4-1/2 in. Cut-Off/Grinder (Tool-Only) | 15 Amp 7 in. Corded Angle Grinder with Grinding wheel, Side handle and Wheel Guard | M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 4-1/2 in. / 5 in. Grinder with Paddle Switch (Tool-Only) |
| Price | $7900 | $9900 $119.00 Save $20.00 (17%) | $15900 | $17900 |
| Ratings | (158) | (1986) | (156) | (1627) |
| Cordless/ Corded | Corded | Cordless | Corded | Cordless |
| Wheel Diameter (in.) | 4.5 in | 4.5 | 7 in | 5 |
| Power Tool Features | Lock On Switch,No Tool Wheel Change,Second Handle Included | Adjustable Handle Position,No Tool Wheel Change,Spindle Lock | Grinding Wheel Included,Lock On Switch,No Tool Wheel Change,Second Handle Included | Adjustable Handle Position,Brushless,No Tool Wheel Change,Spindle Lock,Variable Speed |
| Amperage (amps) | 7.5 | 0 | 15 | 0 |
| Voltage (volts) | 18 | 18 | ||
| Voltage (v) | 18v | |||
| Battery Amp Hours | No Battery | |||
| Motor Type | Brushed | Brushless | ||
| View Product | View Product | View Product | View Product |
Compare Similar Shop Tool Gift Savings
| | | | |
| Brand | Makita | Milwaukee | Makita | Milwaukee |
| Name | 7.5 Amp 4-1/2 in. Paddle Switch Angle Grinder | M18 18-Volt Lithium-Ion Cordless 4-1/2 in. Cut-Off/Grinder (Tool-Only) | 15 Amp 7 in. Corded Angle Grinder with Grinding wheel, Side handle and Wheel Guard | M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 4-1/2 in. / 5 in. Grinder with Paddle Switch (Tool-Only) |
| Price | $7900 | $9900 $119.00 Save $20.00 (17%) | $15900 | $17900 |
| Ratings | (158) | (1986) | (156) | (1627) |
| Cordless/ Corded | ||||
| Wheel Diameter (in.) | ||||
| Power Tool Features | ||||
| Amperage (amps) | ||||
| Voltage (volts) | ||||
| Voltage (v) | ||||
| Battery Amp Hours | ||||
| Motor Type | ||||
| View Product | View Product | View Product | View Product |
Key Features
M18 System Metalworking Solutions
Professional grade power, extreme performance, and system compatibility.
200+ solutions on a single 18-volt cordless system
Featuring high performing, trade-focused solutions
MILWAUKEE M18 System
Game changing products for the professional trades like Plumbing, Electrical and many others
Performance Driven
Delivers the best-in-class performance
Trade Focused
Milwaukee is dedicated to the trades - providing professional solutions on one platform
System Compatibility
Tools on the M12 System – Fit all M12 Batteries
M12 Cordless Tool Technology
Provides tradesmen with unmatched levels of performance, protection, and productivity.
Grinders
Small to large angle grinders all on the same battery platform including the M18 FUEL 4-1/2" and 6" Grinder.
Magnetic Drills
The M18 FUEL 1-1/2" Magnetic Drill delivers the strongest hold on 1/4” steel for a safer drilling environment
Band Saws
The widest range of cordless band saws including the M18 FUEL Deep Cut Band Saw
Metal Cutting Circ Saws
The M18 FUEL 8" Metal Cutting Circular Saw delivers up to 120’ of cutting corrugated decking per charge
Shears
Man wearing work gloves makes a straight cut in sheet metal with an M18 Double Cut Shear.
Lighting
The M18 RADIUS Site Light delivers 60° coverage with 9,000 lumens.
Specifications
Dimensions
Details
Warranty / Certifications
Questions & Answers
does it come with a battery and charger, is it the right tool for cutting small branches to trim ...
Asked by mm August 22, 2019I have used cordless sawzalls for a decade and a half to limb and cut SMALL trees down. (I don't think that I wood try anything over about 5-6". Use a pruning blade. They come in plain and carbide. The longest one that I have seen is 12".
Does the Milwaukee M18 4-1/2 in. Cordless Cut-Off Tool/Grinder use the same battery as all the other M18 tools?
Asked by Jason March 26, 2012No, the grinder that I purchased has a tab located in the battery slot that rejects the smaller batteries. Will have to return to store tomorrow morning to buy 18v 5.0 Li...hopefully it will also work with my drill and saws.
How long of a blade can be used with this sawzall?
Asked by Ronald November 2, 2019I have used 12 inch blades .
my blade lock no longer holds the blade in place. Can this be replaced? If so, how.
Asked by Michelle October 13, 2018Try oiling it first. As a plumber I get it wet quit often so I oil it after each job. no more problems!
Does this saw come with Blade?
Asked by Tom February 22, 2016comes with a blade
Will the batteries for my m18 fuel 1/2” impact work on this particular tool?
Asked by Luke September 10, 2018yes it will. but you should get battery no less then 5AH and up
Will my 18V m18 2.0 AH batterys fit this saw
Asked by Ceaven May 2, 2019Yes. Will not last long before recharging
For the price of $99 does light come with the 18V battery plus charging station?
Asked by Andrew November 12, 2014Mine was just the bare light. No battery.
Does it come with the wrench I understand it does not come with batteries that is fine I have batteries and a charger
Asked by BRick April 13, 2018yes, it comes with the wrench
what's the difference between the Fuel grinder and this one ?
Asked by chris July 4, 2019The Fuel one probably has a brushless motor and a better battery. Check the difference by checking on the Milwaukee website.
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