2026 Makita GCU08Z

40V max XGT Brushless Cordless 20 in Chain Saw, Tool Only

POWER: Makita-built brushless motor delivers power of a 50cc gas chain saws
DURABILITY: Extreme Protection Technology (XPT™) engineered for improved dust and water resistance
DESIGN: No gas, emissions, oil mixing or pull starts with reduced maintenance and low noise levels
CONVENIENCE: Reduced maintenance lowers operating costs and minimizes down time
INCLUDES: Tool only (batteries and charger not included), 20" guide bar and 20" saw chain

The 40V max XGT® 20" Chain Saw (GCU08) delivers the power of a 50cc gas rear handle chain saw designed with high chain speed (5,700 FPM). The GCU08 cuts up to 25% faster than a 50cc gas chain saw. It features Extreme Protection Technology (XPT™) & IPX4M rating, engineered for use in rainy conditions*.

The 20” Chain Saw features tactile controls with a 3-mode button that allows the user to adjust the chain speed. It also eliminates pull starts, by having an easily accessible on/off power button. It also features a display panel with 6 LED indicators that allows for instant tool status check and chain speed monitoring.

The GCU08 features a variable trigger and 3 chain speeds (3,937/ 4,823/ 5,700 FPM) for improved speed control and cutting performance. Included with the GCU08 is a 20" sprocket nose guide bar and .325" low profile pitch, .050" gauge chain. The 20” Chain Saw features an inertia activated chain brake that stops the rotation of the chain.

The GCU08 features a lock-off lever that improves handling and a 5-minute auto power-off helps prevent accidental activation while conserving battery life. The GCU08 can utilize the XGT® High Power 8.0Ah Battery (BL4080H), which delivers up to 35% More Power** (battery not included).

Convenience features include a large oil filling port with view window that allows the operator to easily add and check bar oil level, an adjustable automatic chain lubrication system with a large oil reservoir for increased user convenience, and a lateral chain tensioning system with dual studs for efficient chain retention.

Additional convenience features include a rubberized soft grip top handle is engineered for the user to apply even cutting pressure, captured bar nuts that are retained in the sprocket cover for convenient setup and maintenance, and reduced maintenance that lowers operating costs and minimizes down time.

XGT® is a system of equipment, tools, batteries, and chargers utilizing 40V max lithium-ion batteries. XGT® is engineered to deliver high power to take on high-demand applications, allowing users to completely transition to a cordless job site. XGT® is equipped with advanced brushless motor engineering, intelligent digital communication, and superior durability features to outpower, outsmart, and outlast the rest.

*IPX4M-rated for use in rainy conditions when the tool displays the IPX4M and use-in-rain symbols and is operated with a Makita battery marked for use in rain.

TECHNOLOGY

XGT®
XGT® is a new 40V | 80V max system of cordless equipment and tools. XGT outpowers, outsmarts, and outlasts the rest. Through Makita’s innovative engineering, the technology within XGT will lead to creating the equipment and tools of the future.

XPT™ Extreme Protection Technology
When the job takes your Makita tool into harsh conditions, Makita Extreme Protection Technology (XPT™) provides added protection. XPT™ is a series of integrated seals engineered to channel away dust and water for increased durability. Wherever the job takes you, Makita tools equipped with XPT™ are engineered for increased durability and longer tool life.

Features May Include: 

• OUTPOWER: Makita-built brushless motor delivers the power of a 50cc gas chain saw
• OUTSMART: Cuts up to 25% faster than a 50cc gas chain saw
• OUTLAST: Extreme Protection Technology (XPT™) & IPX4M rating engineered for use in rainy conditions*
• BL4080H 8.0Ah High Power Battery features tabless cell technology delivering up to 35% More Power** for optimal cutting performance with GCU08 (battery not included)
• Tactile controls with 3-mode chain speed button for enhanced operability; on/off power button eliminates pull starts
• Display panel with 6 LED indicators allow for instant tool status check and chain speed monitoring
• Variable trigger and 3 chain speeds (3,937/ 4,823/ 5,700 FPM) for improved speed control and cutting performance
• Lock-off lever improves handling and 5-minute auto power-off helps prevent accidental activation while conserving battery life
• Includes 20" sprocket nose guide bar and .325" low profile pitch, .050" gauge chain
• No gas, emissions, oil mixing or pull starts
• High performance with low noise levels
• Reduced maintenance lowers operating costs and minimizes down time
• Captured bar nuts retained in sprocket cover for convenient setup and maintenance
• Lateral chain tensioning with dual stud for efficient chain retention
• Adjustable automatic chain lubrication with large oil reservoir
• Large oil filling port with view window allows operator to easily add and check bar oil level
• Inertia activated chain brake stops rotation of the chain
• Rubberized soft grip top handle is engineered for the user to more easily apply even cutting pressure
• The digital communication within XGT® actively monitors and protects against overload, over-discharge and overheating
• XGT® Tools and Batteries are designed with a multi-layer contact interface for more constant power delivery to take on high-current demands
• XGT® Batteries feature rigid rails with impact-resistant construction to secure the battery to the tool during high-demand applications (batteries not included)
• The XGT® Rapid Charger with dual-fan design circulates air through the battery to cool the battery and circuit board quickly for faster charging (charger not included)
• The XGT® Rapid Charger’s digital display indicates battery charge level (-80%, +80%, 100%)
• Compatible with Makita® 40V max XGT® Lithium-Ion Batteries
• 3-year limited warranty
• Only use genuine Makita batteries and chargers
• *IPX4M-rated for use in rainy conditions when the tool displays the IPX4M and use-in-rain symbols and is operated with a Makita battery marked for use in rain