Milwaukee 18V FUEL 230mm Cut-Off Saw ONE-KEY M18COS230-0
The M18 FUEL 230 mm (9") Cut-Off Saw w/ ONE-KEY is an extremely versatile solution for cutting a large variety of materials. The cordless cut off saw runs on our MILWAUKEE M18 REDLITHIUM -ION batteries instead of using petrol like most traditional cut off saws. The cut off saw delivers the power to cut reinforced concrete as well as a large variety of other metal and masonry materials. It delivers this performance in a compact and ergonomic design resulting in minimum fatigue for the user. By utilising a M18 REDLITHIUM -ION HIGH OUTPUT HD12.0 Battery (not included), the saw also ensures the user will experience no petrol headaches. The concrete cutting saw produces no fumes so can be used indoors. It also starts up instantly, eliminates the need to mix petrol and oil, and there is no petrol engine maintenance. The M18 FUEL 230 mm (9") Cut-Off Saw is ONE-KEY capable, allowing users to track and manage the tool. Gives users the power to cut reinforced concrete as well as other metal and masonry materials Next generation POWERSTATE brushless motor, REDLINK PLUS electronics and REDLITHIUM -ION 12.0Ah battery pack delivers superior performance, durability and run time in high demand applications Lighter than 355 mm (14”) petrol saws on the market Less fatigue and easier cuts at waist to shoulder height Allows users to complete many of the jobs a standard 355 mm (14’’) petrol saw can, without common petrol headaches No emissions No pull start No mixing petrol and oil No engine maintenance Full M18 system compatibility Power to cut reinforced concrete No gas headaches Load indicator light RAPID STOP blade brake Fully adjustable guard Onboard Quick Connet water connection ONE-KEY tool tracking and management Specifications Blade Diameter: 230 mm (9") Cut Capacity: 86.4 mm Arbor Size: 22.2 mm (7/8") RPM: 6600 Water Connection: Quick Connect Load Indicator Light: Yes ONE-KEY : Yes *Batteries & Charger not included
The M18 FUEL 230 mm (9") Cut-Off Saw w/ ONE-KEY is an extremely versatile solution for cutting a large variety of materials. The cordless cut off saw runs on our MILWAUKEE M18 REDLITHIUM -ION batteries instead of using petrol like most traditional cut off saws. The cut off saw delivers the power to cut reinforced concrete as well as a large variety of other metal and masonry materials. It delivers this performance in a compact and ergonomic design resulting in minimum fatigue for the user. By utilising a M18 REDLITHIUM -ION HIGH OUTPUT HD12.0 Battery (not included), the saw also ensures the user will experience no petrol headaches. The concrete cutting saw produces no fumes so can be used indoors. It also starts up instantly, eliminates the need to mix petrol and oil, and there is no petrol engine maintenance. The M18 FUEL 230 mm (9") Cut-Off Saw is ONE-KEY capable, allowing users to track and manage the tool. Gives users the power to cut reinforced concrete as well as other metal and masonry materials Next generation POWERSTATE brushless motor, REDLINK PLUS electronics and REDLITHIUM -ION 12.0Ah battery pack delivers superior performance, durability and run time in high demand applications Lighter than 355 mm (14”) petrol saws on the market Less fatigue and easier cuts at waist to shoulder height Allows users to complete many of the jobs a standard 355 mm (14’’) petrol saw can, without common petrol headaches No emissions No pull start No mixing petrol and oil No engine maintenance Full M18 system compatibility Power to cut reinforced concrete No gas headaches Load indicator light RAPID STOP blade brake Fully adjustable guard Onboard Quick Connet water connection ONE-KEY tool tracking and management Specifications Blade Diameter: 230 mm (9") Cut Capacity: 86.4 mm Arbor Size: 22.2 mm (7/8") RPM: 6600 Water Connection: Quick Connect Load Indicator Light: Yes ONE-KEY : Yes *Batteries & Charger not included
The M18 FUEL 230 mm (9") Cut-Off Saw w/ ONE-KEY is an extremely versatile solution for cutting a large variety of materials. The cordless cut off saw runs on our MILWAUKEE M18 REDLITHIUM -ION batteries instead of using petrol like most traditional cut off saws. The cut off saw delivers the power to cut reinforced concrete as well as a large variety of other metal and masonry materials. It delivers this performance in a compact and ergonomic design resulting in minimum fatigue for the user. By utilising a M18 REDLITHIUM -ION HIGH OUTPUT HD12.0 Battery (not included), the saw also ensures the user will experience no petrol headaches. The concrete cutting saw produces no fumes so can be used indoors. It also starts up instantly, eliminates the need to mix petrol and oil, and there is no petrol engine maintenance. The M18 FUEL 230 mm (9") Cut-Off Saw is ONE-KEY capable, allowing users to track and manage the tool. Gives users the power to cut reinforced concrete as well as other metal and masonry materials Next generation POWERSTATE brushless motor, REDLINK PLUS electronics and REDLITHIUM -ION 12.0Ah battery pack delivers superior performance, durability and run time in high demand applications Lighter than 355 mm (14”) petrol saws on the market Less fatigue and easier cuts at waist to shoulder height Allows users to complete many of the jobs a standard 355 mm (14’’) petrol saw can, without common petrol headaches No emissions No pull start No mixing petrol and oil No engine maintenance Full M18 system compatibility Power to cut reinforced concrete No gas headaches Load indicator light RAPID STOP blade brake Fully adjustable guard Onboard Quick Connet water connection ONE-KEY tool tracking and management Specifications Blade Diameter: 230 mm (9") Cut Capacity: 86.4 mm Arbor Size: 22.2 mm (7/8") RPM: 6600 Water Connection: Quick Connect Load Indicator Light: Yes ONE-KEY : Yes *Batteries & Charger not included
The M18 FUEL 230 mm (9") Cut-Off Saw w/ ONE-KEY is an extremely versatile solution for cutting a large variety of materials. The cordless cut off saw runs on our MILWAUKEE M18 REDLITHIUM -ION batteries instead of using petrol like most traditional cut off saws. The cut off saw delivers the power to cut reinforced concrete as well as a large variety of other metal and masonry materials. It delivers this performance in a compact and ergonomic design resulting in minimum fatigue for the user. By utilising a M18 REDLITHIUM -ION HIGH OUTPUT HD12.0 Battery (not included), the saw also ensures the user will experience no petrol headaches. The concrete cutting saw produces no fumes so can be used indoors. It also starts up instantly, eliminates the need to mix petrol and oil, and there is no petrol engine maintenance. The M18 FUEL 230 mm (9") Cut-Off Saw is ONE-KEY capable, allowing users to track and manage the tool. Gives users the power to cut reinforced concrete as well as other metal and masonry materials Next generation POWERSTATE brushless motor, REDLINK PLUS electronics and REDLITHIUM -ION 12.0Ah battery pack delivers superior performance, durability and run time in high demand applications Lighter than 355 mm (14”) petrol saws on the market Less fatigue and easier cuts at waist to shoulder height Allows users to complete many of the jobs a standard 355 mm (14’’) petrol saw can, without common petrol headaches No emissions No pull start No mixing petrol and oil No engine maintenance Full M18 system compatibility Power to cut reinforced concrete No gas headaches Load indicator light RAPID STOP blade brake Fully adjustable guard Onboard Quick Connet water connection ONE-KEY tool tracking and management Specifications Blade Diameter: 230 mm (9") Cut Capacity: 86.4 mm Arbor Size: 22.2 mm (7/8") RPM: 6600 Water Connection: Quick Connect Load Indicator Light: Yes ONE-KEY : Yes *Batteries & Charger not included
in 19 offers
The lowest price for Milwaukee 18V FUEL 230mm Cut-Off Saw ONE-KEY M18COS230-0 right now is $849.15 at westoztools.com.au, compared across 19 retailers.
The all-time low was $480.00 on 18 Sept 2026 — today's price is 77% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 2 Nov 2026.
Last updated at 02/11/2026 08:46:35
Milwaukee 18V Li-ion Cordless Fuel ONE-KEY 230mm (9") Cut-Off Saw - Skin Only - M18COS230-0
Free delivery between Thu – Fri
Milwaukee M18COS230-0 M18 FUEL One-Key 18V Cordless Cut-Off Saw - 230mm (9")
Delivery between Wed – Sat $60.55
Milwaukee M18COS230-0 - 18V M18 230mm (9") Cordless Brushless Cut Off Saw with ONE-KEY Skin - C&L Tool Centre
Delivery between 5–9 Nov $30
Milwaukee M18COS230-0 Brushless Cut Off Saw 230mm 18V (Skin Only)
Delivery between 5–12 Nov $41.05
Milwaukee M18 FUEL 230mm (9") Cut-Off Saw w/ ONE-KEY (Tool only)
Free delivery between 6–10 Nov
Milwaukee M18COS230-0 18V Li-ion Cordless Fuel ONE-KEY 230mm (9") Cut-Off Saw - Skin Only
Free delivery
Milwaukee M18 FUEL 230 mm (9") Cut-Off Saw w/ ONE-KEY (Tool only)
Delivery $10
Milwaukee M18 FUEL 230mm (9") Brushless Cordless Cut Off Saw Skin - M18COS230-0
Free delivery between 4–10 Nov
Milwaukee M18COS230-0 - 18V Brushless One-Key 230mm (9") Cut-Off Saw (Tool Only)
Free delivery
18V 230mm Cut Off Saw Bare (Tool Only) M18COS230-0 by Milwaukee
Free delivery
originally posted on milwaukeetool.co.nz
For a battery powered tool this is a remarkable cut off saw. I can easily cut through a floor slab. But don't rush it. The cut off depth is slightly less than the slab thickness so it means I don't cut through the polythene dpc underneath but the concrete is still easy to break out. Definitely need the 12amp hr battery for it.
| Material Compatibility | Reinforced concrete |
| Cutting Capacity | 86.4 mm |
| Cutting Depth | 3.4" |
| Cutting Material | Reinforced concrete |
| Safety Highlights | RAPID STOP blade brake, Fully adjustable guard |
Milwaukee 18V Li-ion Cordless Fuel ONE-KEY 230mm (9") Cut-Off Saw - Skin Only - M18COS230-0
Free delivery between Thu – Fri
Milwaukee M18COS230-0 M18 FUEL One-Key 18V Cordless Cut-Off Saw - 230mm (9")
Delivery between Wed – Sat $60.55
Milwaukee M18COS230-0 - 18V M18 230mm (9") Cordless Brushless Cut Off Saw with ONE-KEY Skin - C&L Tool Centre
Delivery between 5–9 Nov $30
Milwaukee M18COS230-0 Brushless Cut Off Saw 230mm 18V (Skin Only)
Delivery between 5–12 Nov $41.05
Milwaukee M18 FUEL 230mm (9") Cut-Off Saw w/ ONE-KEY (Tool only)
Free delivery between 6–10 Nov
For a battery powered tool this is a remarkable cut off saw. I can easily cut through a floor slab. But don't rush it. The cut off depth is slightly less than the slab thickness so it means I don't cut through the polythene dpc underneath but the concrete is still easy to break out. Definitely need the 12amp hr battery for it.
| Material Compatibility | Reinforced concrete |
| Cutting Capacity | 86.4 mm |
| Cutting Depth | 3.4" |
| Cutting Material | Reinforced concrete |
| Safety Highlights | RAPID STOP blade brake, Fully adjustable guard |
