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“I have so many HiKOKI multi-volt tools to choose from—how do I know which one is right for me?” This article is for such users. Based on hands-on experience at professional job sites, we will thoroughly explain 10 models you won’t regret choosing from the entire multi-volt lineup.
HiKOKI (formerly Hitachi Koki) is the number two brand in the domestic power tool market. The defining characteristic that sets the multi-volt series apart from other brands is the existence of the “36V/18V automatic switching battery (BSL36A18 series)“. Since the same battery automatically switches voltage according to the voltage of the hand-held tool, users who own Makita 18V compatible tools can still leverage their existing battery assets when transitioning to high-power 36V tools.
メナA single multi-volt battery (BSL36A18) powers both 18V and 36V tools. The greatest appeal is that you never have to experience the frustration of buying an additional battery only to find it doesn’t work with your other tools.
What is Multi-Volt? How 36V/18V Automatic Switching Works and Expandability
Multi-volt batteries (such as BSL36A18) have 18V cells arranged internally in two series/parallel configurations, automatically detecting the tool’s designed voltage and switching between 36V (series) or 18V (parallel) accordingly. In other words, even if you currently own 18V tools from Makita or other brands, you can gradually transition to multi-volt tools, and after the transition is complete, you can manage all tools with just one type of battery, achieving minimal tool unification costs.
Battery Compatibility (BSL36A18 and BSL18 Series)
The following batteries can be used with HiKOKI’s multi-volt compatible tools:
・BSL36A18 (36V/18V automatic switching, multi-volt exclusive) — Maximum power at 36V operation
・BSL18XA / BSL18X (18V series) — Multi-volt tools automatically switch to 18V operation
A cost-efficient migration strategy is to first test multi-volt tools with your existing 18V batteries, then switch to multi-volt batteries according to your budget.
Selection Criteria (Priority Order: Compatibility → Durability → Functionality)
The priority axes for selecting HiKOKI tools are as follows:
1. Battery Compatibility: Can you leverage your existing battery assets (18V)?
2. Durability: Can it withstand heavy use at professional job sites? (IP rating, brushless motor adoption)
3. Functional Balance: Are the work-efficiency-enhancing features well-balanced without excess or shortage?
Cost is judged not by “cheapness” but by “how long it will last = running cost”.
Top 10 HiKOKI Multi-Volt Tools We Recommend
HiKOKI WH36DC Cordless Impact Driver 36V Multi-Volt (3rd Generation)
メナWhen you bring it to bolt tightening on steel frames, you no longer need a compressor. I never thought the day would come when a single tool like this could replace air tools.
The WR36DA is a cordless impact wrench boasting a maximum tightening torque of 700 N·m. It demonstrates its true value in job sites requiring high torque, such as steel frame construction, plant piping flange tightening, and heavy equipment tire changes. Compared to air impact wrenches, it eliminates the need for a compressor and hoses, making it particularly advantageous for overhead work and confined space piping.
With stable power output at 36V, it can easily handle final tightening and preliminary tightening of high-tensile bolts (HTB). Socket tightening speed is fast, so even continuous bolt tightening work on multiple bolts results in minimal physical fatigue, making it popular among professional tradespeople.
As a drawback, the unit weighs 1.7 kg, making it heavier than an impact driver, and prolonged overhead work can cause arm fatigue. The correct approach is to dedicate its use to bolt tightening and disassembly only, using an impact driver for drilling and small-diameter screw work.
HiKOKI G3618DA Cordless Disc Grinder 36V Multi-Volt 180mm
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メナThere’s a difference in the sense of security when using cordless for deburring after cutting and welding steel. We’ve seen fewer accidents from cords catching on scaffolding.
The G3618DA is a 36V cordless disc grinder compatible with Φ180mm grinding stones. With a no-load speed of 8,500 rpm, it handles heavy job site work including cutting rebar and structural steel, cutting concrete joints, and removing slag after welding. The wheel guard is switchable between cutting and grinding modes, allowing one unit to be used for multiple purposes.
Going cordless allows use in places where routing cables is difficult, such as on scaffolding at construction sites or near high-voltage electrical equipment. The soft start function suppresses rapid spin-up of the grinding stone, allowing for safe operation without wobbling.
The 180mm large-diameter grinding stone offers deep cut depth, but the tool becomes heavier (body weight 2.3kg + battery). If lightness is the priority, the 100mm grinder has an advantage, but for professional job sites that require cutting precision and power, the 180mm is the right choice.
HiKOKI CR36DA Cordless Reciprocating Saw 36V Multi-Volt
メナOne of the few models that can replace corded reciprocating saws on demolition sites. It maintains power and keeps cutting continuously.
The CR36DA is a standard tool for renovation and demolition sites, a cordless reciprocating saw. The twin swivel counterweight mechanism reduces vibration by approximately 50%. Even during long cutting operations, arm fatigue is minimal, and it can quickly process wood, metal, and vinyl pipes in both straight and curved cuts.
With the stroke orbital mechanism (orbital action), the blade moves in an elliptical trajectory rather than simple back-and-forth strokes, greatly improving cutting efficiency. For rough cutting wood and demolition materials, you can experience cutting speeds 1.5 times or more faster than conventional methods.
The strength of reciprocating saws is that by changing the blade, they can be used on various materials including wood, steel, concrete, and synthetic resin pipes. As one of the few cordless models that can maintain work quality equivalent to corded saws on demolition sites, it has earned high praise from job site supervisors and renovation contractors.
HiKOKI CS3630DA Cordless Chain Saw 36V Multi Volt Bar Length 300mm
メナI use it for maintaining farmland and splitting firewood. Compared to gasoline models, the engine noise and vibration are significantly reduced. You can use it without hesitation in residential garden areas.
The CS3630DA is a multi-volt cordless chainsaw with a 300mm bar length. The 300mm guide bar is a practical size capable of cutting through wood approximately 25-30cm in diameter in a single pass. It functions as a substitute for gasoline chainsaws in outdoor work such as pruning branches in farmland, splitting firewood, and handling fallen trees after typhoons.
The maximum chain speed of 12m/s is high-level for a cordless chainsaw and does not cause noticeable increase in cutting resistance for both softwood and hardwood. The multi-volt battery includes a remaining charge display function, allowing you to plan and pause work before the battery runs out.
As a caveat, it is not suitable for professional forestry work (large diameter wood exceeding 50cm in diameter). The main application range is residential garden trees, farmland fruit trees, and DIY firewood splitting. Compared to gasoline models, the simplified maintenance (no plug replacement or carburetor adjustment required) is a significant advantage for long-term use.
HiKOKI C3606DA Cordless Circular Saw 36V Multi-Volt 165mm
メナA 165mm circular saw becomes cordless, and it changes how you move on site. The work of routing extension cords completely disappears.
The C3606DA is a 36V cordless circular saw compatible with 165mm blades. With a maximum cutting depth of 67mm (at 90 degrees), it handles ripping, crosscutting, and angled cuts of 2×4 lumber and 45mm square stock. At wooden construction sites, this size offers the highest versatility, and can handle many materials in one unit—roof rafters, studs, door frames, and more.
The biggest perceived advantage compared to corded circular saws is “the peace of mind from eliminating cord management.” Fundamental mistakes like stepping on the cord or interfering with the cut line disappear, improving cutting accuracy for both beginners and intermediate craftspeople. The 36V power maintains smooth straight cuts without loss of RPM even during continuous cutting of thick boards (38mm thick).
Drawbacks include the blade assembly being heavier than corded versions (about 5kg including battery), and the need to swap batteries during extended continuous use. For woodworking DIY or construction assistants, this isn’t a problem, but at high-volume cutting sites like house framing, you’ll need to carry 2-3 spare batteries.
HiKOKI DS36DC Cordless Driver Drill 36V Multi Volt (3rd Generation)
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メナUsed for materials that would be damaged by an impact driver. With a torque limiter, you can safely drill holes without damaging the material.
The DS36DC is a 36V driver drill with a clutch function. With a maximum torque of 155 N·m that rivals impact drivers, the 21-stage clutch allows precise control of fastening force. It prevents material splitting and screw head crushing from over-tightening, making it ideal for precision work in fastening screws to thin sheets, wood, and plastic.
The drilling function features a keyless chuck that accepts both round and hex shaft drill bits. It handles wood up to Φ118mm (using a hole saw) and steel up to Φ13mm. It’s ideal for applications requiring more delicacy than impact drivers, such as equipment maintenance in manufacturing, woodworking furniture production, and opening work in interior finishing.
The key to differentiating between an impact driver and this drill is whether impact force is needed. The professional approach is to divide roles: impact drivers handle long screws and coarse threads, while driver drills handle pre-drilling, precision fastening, and woodworking.
HiKOKI CJ36DA Cordless Jigsaw 36V Multi-Volt
メナI use it for kitchen countertop openings and curved cuts in interior work. Since it went cordless, I no longer have to worry about where I work.
The CJ36DA is a cordless jigsaw for curved and straight cutting of wood, metal, and resin. With cutting capacity of 135mm for wood and 30mm for soft steel plates, it handles a wide range of applications from interior work openings (countertop and flooring cutouts) to metal plate processing. The combination of dial-type variable speed and orbital cutting adjustment (4 stages) allows you to set optimal cutting action suited to the material.
T-shank blades are industry standard with abundant compatible options, so there’s no need to stock a large inventory of dedicated blades. Blade changes are one-touch style, requiring no tools and no screws. Zero downtime when switching between woodwork and metalwork on job sites.
The jigsaw’s weaknesses are that its cutting speed lags behind circular saws and straight-line accuracy is difficult to achieve without a guide. You can compensate for straight-line accuracy by using the included fence guide or by cutting against a straightedge. For applications with lots of curved cutting, such as interior renovation, furniture making, and display fixture manufacturing, this tool is one that benefits most from going cordless.
HiKOKI RB36DB Cordless Blower 36V Multi-Volt (2nd Generation)
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メナI use it to blow away chips and dust at the job site. Since it’s cordless, I can quickly clean around my work table. It serves as a replacement for an air blower.
The RB36DB is HiKOKI’s second-generation 36V cordless blower. With three-stage airflow adjustment, it handles everything from blowing dust around delicate circuit boards (low) to removing large amounts of fallen leaves and wood chips (high). The low-noise design allows for thoughtful use in early morning work in residential areas and indoor cleaning.
At just 1.3 kg, it’s lightweight and compact, allowing you to hold it in one hand while freely adjusting the nozzle direction. Since it can perform air-blower-equivalent cleaning without a compressor, it’s highly useful at job sites where large equipment cannot be brought in (rooftops, elevated scaffolding).
One note: the maximum air pressure is lower than that of compressor-connected air blowers. It’s not suitable for spraying urethane foam or high-pressure cleaning in tight spaces; it’s best positioned as a tool dedicated to cleaning and blowing away fallen leaves. The ability to manage HiKOKI’s entire tool lineup with shared multi-volt batteries is valued by users who want to unify their battery system.
Summary: Benefits of Unifying Tools with Multi-Volt
I’ve introduced 10 HiKOKI multi-volt models. The biggest reason to choose them is cost reduction through battery consolidation. When an impact driver, hammer drill, and grinder all run on the same battery, the number of chargers needed, the hassle of battery changes, and the risk of running out of power in emergencies are significantly reduced.
For your first tool, the WH36DC impact driver is the most versatile. It can be used immediately with existing 18V batteries, and when your budget allows, you can upgrade to a BSL36A18 battery to transition to full-power 36V operation. After that, it’s recommended to expand with a circular saw (C3606DA) and hammer drill (DH36DPA) depending on your needs.
メナWhen choosing tools, first check whether the battery is shared. HiKOKI’s multi-volt system is among the best in the country for expandability in this regard.
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