100 mm | Makita BGA452, BGA450, BGA402 instruction

Operation with abrasive cut-off / diamond wheel (optional accessory)

The direction for mounting the lock nut and the inner flange varies by wheel thickness.

Refer to the table below.

010855

1.Lock nut

2.Abrasive cut-off wheel/diamond wheel

3.Inner flange

4.Wheel guard for abrasive cut-off wheel/diamond wheel

100 mm (4")

	Abrasive cut-off wheel			Diamond wheel
				Diamond wheel


Thickness: Less than 4 mm (5/32")		Thickness: 4 mm (5/32") or more	Thickness: Less than 4 mm (5/32")		Thickness: 4 mm (5/32") or more

16 mm (5/8")

20 mm (13/16")

1. Lock nut

2. Abrasive cut-off wheel

3. Inner flange

4. Diamond wheel

115 mm (4 - 1/2") / 125 mm (5")

Abrasive cut-off wheel				Diamond wheel
Thickness: Less than 4 mm (5/32")		Thickness: 4 mm (5/32") or more	Thickness: Less than 4 mm (5/32")		Thickness: 4 mm (5/32") or more
		1			1
		2			4
22.23 mm (7/8")		22.23 mm (7/8")	22.23 mm (7/8")		22.23 mm (7/8")
		3			3
1. Lock nut	2. Abrasive cut-off wheel		3. Inner flange	4. Diamond wheel

010848

WARNING:

•When using an abrasive cut-off / diamond wheel, be sure to use only the special wheel guard designed for use with cut-off wheels. (In European countries, when using a diamond wheel, the ordinary guard can be used.)

•NEVER use cut-off wheel for side grinding.

•Do not "jam" the wheel or apply excessive pressure. Do not attempt to make an excessive depth of cut. Overstressing the wheel increases the loading and susceptibility to twisting or binding of the wheel in the cut and the possibility of kickback, wheel breakage and overheating of the motor may occur.

BGA452, BGA450, BGA402 specifications

The Makita BGA402, BGA450, and BGA452 are a trio of powerful cordless angle grinders designed for both professional tradespeople and DIY enthusiasts. These models offer a blend of performance and versatility that caters to a wide range of applications, including cutting, grinding, and polishing. Each model comes with a unique set of features and technologies that enhance user experience and efficiency.

The BGA402 is powered by a robust 18V lithium-ion battery, providing the endurance required for demanding tasks. It boasts a compact design, making it easy to maneuver in tight spaces. One of its standout features is the electronic brake that halts the rotation of the wheel within seconds of releasing the trigger, significantly improving safety. Additionally, its rubberized grip offers comfort during extended use, reducing fatigue. This model also features a spindle lock for easy wheel changes, saving valuable time on the job site.

The BGA450 takes it a step further with its increased power and performance. With a no-load speed of 10,000 RPM, it is ideal for heavy-duty applications. This model incorporates Makita's Anti-Restart Function, which prevents accidental start-up after a power interruption, providing added safety. The BGA450 also features a tool-less wheel guard adjustment, allowing users to quickly adapt the guard position based on their task. Its lightweight design contributes to user-friendly operation, ensuring that professionals can work efficiently without strain.

On the other hand, the BGA452 combines the best attributes of its predecessors while introducing enhanced runtime and efficiency. Equipped with a more efficient brushless motor, this model delivers longer use between charges, ideal for high-demand projects. The onboard LED indicator helps keep track of battery status, ensuring users can plan their work without unexpected interruptions. With a two-position side handle, the BGA452 offers versatility for left and right-handed users, maximizing comfort and control during operation.

In summary, Makita's BGA402, BGA450, and BGA452 angle grinders are engineered to provide superior performance, safety, and ease of use. Their innovative technologies, such as electronic brakes, anti-restart functions, and lightweight designs, position them as top choices in the cordless grinder market. Whether for professional use or personal projects, these models deliver the power and efficiency that users demand, making them valuable tools in any toolkit.