[GA420D] MAKITA 18V Cordless Disc Grinder Body Only

MAKITA SKU: GA420DZ
Selling price (Please note that the price is displayed excluding tax for carts compatible with both Japan and overseas.)
Regular Price $7,926.00
Regular Price Selling Price $7,926.00
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Made-to-order item. Ships within 7 to 10 business days of order.
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  • Shipping schedule: Expected to ship within 1-5 business days. We will generally contact you via email after your order.
  • This product is available for pre-order: Delivery date will be communicated via email after your order.
Including tax View the shipping table. If shipping charges apply, they will be calculated and added at checkout.

The photo shows the tool with a battery fitted. Only the body is supplied.

※ Only 1 unit will be shipped. Body only (battery, charger and case are not included). Delivered in the manufacturer's genuine box.

MAKITA
[GA420D]
Cordless Disc Grinder Body Only

The GA420D is Makita's 18V Cordless Disc Grinder (100mm) featuring "X-LOCK" for one-touch grinding wheel changes. Battery and charger are sold separately.
● Features "X-LOCK". Accessories can be fitted and removed with one touch, making wheel changes easy and fast.
● Grinding wheel: 100mm outer diameter, 22.23mm inner diameter, 6mm thick (compatible wheel thickness 3.5-6mm). No-load speed 8,500min-1.
● Brushless motor plus automatic speed change delivers strong power and adjusts speed according to the load.
● High power on a par with AC models. Cutting depth in concrete is 20mm, and cutting speed (concrete, 600mm length, 10mm depth of cut) is approximately 21 seconds as a guide.
● Paddle switch with brake stops the tool as soon as the switch is released. The restart prevention function keeps the tool from starting even if the battery is inserted while the switch is held.
● Automatically stops when a sudden drop in speed caused by kickback is detected. Equipped with overload protection, heat protection and restart prevention.
● Excellent cooling performance for heavy-duty work. Equipped with battery capacity indicator and soft start. As a guide, work per charge is approximately 16.8m when scoring concrete (10mm depth of cut) with a 6.0Ah battery.
● Dimensions: 376mm length × 117mm width × 147mm height; weight 2.5kg (including battery). Standard accessories are a 36P grinding wheel and side grip.
● The 18V battery can be shared with more than 350 models, including Impact Drivers, circular saws, Disc Grinders and chainsaws.

Part No. Voltage Overall length JAN Price
GA420DZ 18V 376mm 0088381897365 26,950 yen
Item Specification
Grinding wheel dimensions (mm) Outer diameter 100
Grinding wheel dimensions (mm) Thickness 6/(compatible wheel thickness 3.5-6)
Grinding wheel dimensions (mm) Inner diameter 22.23
No-load speed (min-1) [rpm] 8,500
Power supply (V) DC 18
Work per charge (guide) Scoring concrete (10mm depth of cut) 6.0Ah: approx. 16.8m
Weight 2.5kg (with battery fitted)
Standard accessories 36P grinding wheel, side grip
High-power Brushless motor Yes
Dust and water resistance APT
AFT rotational blowout reduction Yes
Tool dimensions Length 376 × Width 117 × Height 147mm
Country of origin China

MAKITA official:GA420D product page
GA420D instruction manual (PDF)

●Shipping cost
Shipping cost for your destination is shown in the cart.

●Duties & taxes
US & EU: duties and VAT are prepaid at checkout (DDP), nothing to pay on delivery.
Other countries: duties and taxes are paid on delivery (DDU).

●Why our terms change
Customs rules keep changing: the US abolished its duty-free threshold (August 2025) and the EU changed its customs rules (July and November 2026). We adjust our carriers and DDP/DDU terms provisionally. If the terms differ from a previous order, this is why.

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