MAKITA DMC300RTJ
18v Angle grinder - 3" (76mm)
- 2 x 5.0Ah Li-ion batteries and charger
- Single speed
- Brushless motor
- 2 x 5.0Ah Li-ion batteries and charger
- Single speed
- Brushless motor
- 2 x 5.0Ah Li-ion batteries and charger
- Single speed
- Brushless motor
DMC300RTJ
The DMC300RTJ is an 18V cordless brushless compact cut-off saw from Makita’s LXT range, designed for precision cutting in tight spaces. It’s ideal for trades like automotive repair, plumbing, and HVAC, and comes as a complete kit with batteries, charger, and case.
Key Features:
• Battery: 18V Li-Ion (LXT platform)
• Disc Diameter: 76 mm
• Max Cutting Depth: 16 mm (13.5 mm with dust cover)
• No-Load Speed: 20,000 rpm
• Brushless Motor: Delivers high efficiency and longer runtime
• Electric Brake: Stops the blade quickly after release
• Reversing Switch: Enables push or pull cutting
• Anti-Restart Function: Prevents accidental start-up after battery change
• Constant Speed Control: Maintains speed under load
• Soft Grip Handle: Improves comfort and control
• Built-in LED Light: Illuminates the cutting area
• XPT Protection: Enhanced resistance to dust and moisture
• Supplied With: 2× 5.0Ah batteries, DC18RC charger, diamond blade, multi-material blade, cut-off wheel, dust collection cover, and Makpac Type 2 case
Technical Specifications:
• Length x Width x Height: 271 × 104 × 182 mm
• Weight (with battery): 1.2 – 1.7 kg
• Net Weight (bare): 0.82 kg
• Bore Size: 9.5 / 10 mm
• Sound Pressure Level: 88 dB(A)
• Sound Power Level: 99 dB(A)
• Vibration Level (Concrete Cutting): 3.0 m/s²
Alternative: DCS552RTJ
A 136 mm cordless metal cut-off saw from the same 18V platform, offering deeper cuts (up to 51 mm) and a larger blade — ideal if you need more capacity while staying in the LXT system.
- 1 year warranty can be extended to 3 years by registering the tool online within 30 days of purchase, subject to the following conditions:
- the tool is CE marked and was purchased on or after 1st July 2012
- the tool is not an Air Compressor/ Air Tool, a Battery/ Charger, an Accessory, or a Petrol or Production Tool - To register your tool for extended warranty click here
- Warranty claims: Please request a collection from Makita using their returns form. Alternatively, you can speed the process up by taking the tool to your nearest approved Makita Area Service Agent. You can find your nearest agent here. When searching for your nearest agent on the website you will need to select the 'Service - Electric' tick box for a power tool warranty claim, or the 'Service - Garden Machinery' tick box for a garden tool warranty claim. Please contact Howe Tools should you need any assistance.
- You can order until 8pm for free next working day delivery to nearly all of England and Wales. For locations further from our hub, our cut off is 5pm. Some harder-to-reach locations may take an extra day. More info »
- For most orders we use a premium carrier that notifies you of a one hour timed delivery slot and sends text updates.
- If you change your mind within 30 days of buying a tool, no problem. Provided the tool has not been used and is in its original packaging, please email us at [email protected] quoting your order number, and we'll reply with your return options.
- If the tool is faulty within 30 days of buying it, we will arrange for its collection at no cost to you and supply a replacement.
- If the tool is faulty after 30 days of buying it, and before the expiry of the manufacturer’s warranty, we will guide you through the manufacturer’s warranty process.



