China High-Quality Power Tools Factory

BOSI Tools is an electric power tools manufacturer from China, offering a comprehensive range that includes electric drills, angle grinders, electric wrenches, electric hammers, electric breakers, circular saws, electric chainsaws, cutters, air compressors, pressure washers, and grinding machines.

From a compact 450W electric drill to a 7.5KW ultra-high-pressure washer, from the Safety Clutch Electric Hammer to a brushless lithium-ion platform—BOSI delivers a full-scenario electric tool solution for building construction, metal fabrication, wood cutting, and cleaning and maintenance, with a complete power spectrum and functional configurations.

We respond promptly to both standard selections and special customizations, and inquiries are welcome.

Working Principle

The essence of an electric power tool is to convert electrical energy into mechanical energy. Through various transmission mechanisms, it outputs rotary, impact, reciprocating, or compressed air actions to perform specific tasks.

BOSI electric tools encompass four major power output forms.

Rotary types

Electric drills, angle grinders, circular saws, and grinding machines use a motor to drive a spindle at high speed via a gear set; drilling with a bit, grinding with a wheel, and cutting with a blade all rely on the work done by circumferential tangential motion.

Impact types

Electric wrenches, hammers, and breakers superimpose axial pulses onto a rotary basis—a wrench outputs pulsed torque through a hammer striking an anvil, a hammer uses a cylinder-compressed air cushion to drive a striker for impact, and a breaker relies purely on linear piston hammering for demolition.

Compressed air type

An air compressor uses a motor-driven crank-connecting rod mechanism to push a piston, compressing air into a storage tank and delivering stable air pressure for pneumatic tools.

Hydraulic type

A pressure washer converts normal-pressure water into a high-pressure jet through a plunger pump; the motor power and plunger seal together determine the water output pressure and flow rate.

From AC plug-in to lithium-ion brushless, from 220V domestic to 380V industrial power, BOSI electric tools maximize efficiency through energy conversion paths matched to the working conditions.

Our Electric Power Tools vs. Other Brands: Why Choose BOSI?

Comparison Dimension	BOSI Electric Power Tools	Same-Price Generic Brands	Imported High-End Brands
Motor & Energy Efficiency	Entire range uses graded selection of pure copper / brushless motors; angle grinders equipped with imported NSK bearings; air compressors use all-copper-wire motors; breakers use imported NSK bearings	Mostly aluminum-wire motors, inflated power ratings, prone to overheating and burnout under heavy load	Top-tier motor quality, but selling price for the same specifications is 2–3 times higher
Safety Configurations	Safety Clutch Electric Hammers automatically disengage upon encountering rebar; all pressure washers feature integrated leakage protection and auto-stop when the gun is released; Profile Cutting Machines have a semi-enclosed guard with a chip shield	Missing safety features or low sensitivity; high risk of bit binding recoil and electric shock	Comprehensive safety features, but functional redundancy drives up the selling price
Functional Depth	Electric drills are divided into Conventional / Impact / Black Warrior series; angle grinders are differentiated into Grinding King / Cutting King tuned versions; breakers range from high-frequency to 60J heavy-duty	Single functions without series segmentation, precluding precise selection based on working conditions	Rich series range, but the overall procurement cost is extremely high
Battery Platform	20V universal battery platform for the lithium-ion series; 4.0Ah/6.0Ah multiple capacity options; one-button battery level check	Inflated battery capacity labels, incompatible platforms, configured with a single battery	High-quality batteries, unified platform, but the unit price for a single battery is expensive
Material & Durability	Aluminum gear housings, high-strength aluminum motor housings, Q235 steel air tanks, imported bearings, and other precision materials selected according to the tool category	High proportion of plastic housings, thinned air tank metal sheets, low-precision bearings	Robust materials, industrial-grade durability, but with a significant price premium

Built on a foundation of pure copper / brushless motors, BOSI electric tools are precisely configured with safety and durability designs tailored by category. They approach professional-grade standards in core performance, delivering industrial-grade base configurations at a sensible price.

How to Choose the Right Electric Power Tools?

Work Scenario	Recommended Category	Core Selection Basis	Typical Combination Examples
Drilling & Fastening	Electric drills, Electric wrenches, Electric hammers	Choose conventional/impact drills for wood and metal, electric hammers for brick walls and concrete, electric wrenches for high-torque bolts	550W Electric Drill + Safety Clutch Electric Hammer + 24C Electric Wrench
Grinding & Cutting	Angle grinders, Circular saws, Cutters, Grinding machines	Choose an angle grinder for metal grinding, a circular saw for wood cutting, a Profile Cutting Machine for cutting profiles, and a grinding machine for sharpening	880W Angle Grinder + 1400W Circular Saw + 2500W Profile Cutting Machine
Breaking & Demolition	Electric breakers	Choose 1100W high-frequency for floor slotting, 1300W for concrete structures, and 1600W/60J for heavy-duty mining tasks	1300W Electric Breaker + 1600W Heavy-Duty Electric Breaker
Cleaning & Air Supply	Pressure washers, Air compressors	Choose a handheld type for home car washing, an ultra-high-pressure type for industrial oil stains, and an Oil-Free Air Compressor for nailing and spraying	2.2KW Pressure Washer + 1380W×2 Air Compressor
Garden & Logging	Electric chainsaws	Choose 1900W/405mm for garden wood sawing, and a Two-Stroke Gasoline Chainsaw for forest sites without electricity	2100W Electric Chainsaw + Gasoline Chainsaw

Selection prioritizes the working material and the intensity required. Within the same category, further match the specific working conditions by power, specification, and safety configuration.

BOSI’s complete product line ensures there is a corresponding model for everything from light DIY to heavy-duty industrial tasks.

Common Problems and Solutions

Common Problem	Cause Analysis	Solution	Corresponding BOSI Design
Motor overheating and shutting down	Blocked ventilation slots or continuous overloaded operation	Clean accumulated dust from ventilation slots; use intermittently according to the duty cycle; run idle for cooling after heavy load	Pure copper / brushless motors with good temperature rise control; aluminum gear housings dissipate heat quickly
Drill bit / saw blade binding	Material contains rebar or the saw blade is pinching	The safety clutch on the electric hammer automatically disengages and reverses out; the circular saw is supported on both sides of the board to prevent pinching	Safety Clutch Electric Hammer auto-stops when hitting rebar; cutting depth limiter prevents undercutting
Insufficient battery runtime	Battery aging or low-temperature environment	Store at 30%–50% charge; warm up the battery before use in low temperatures	20V universal lithium-ion platform, one-button battery level check, two batteries and one charger for rotation
Pressure washer has weak water output	Clogged water inlet filter cup or worn plunger seal	Clean the filter cup; inspect the plunger seal	Enlarged filter cup, stainless steel porcelain-plated plunger for wear resistance
Excessive vibration from an angle grinder	The grinding disc is not concentric or the bearings are worn	Replace with a genuine grinding disc; check the output shaft bearing	High-end series use imported NSK/NMB/TPI bearings for high precision

Safety Precautions for Use

Power Supply and Grounding

Ensure effective grounding for 220V models; professional electricians must wire 380V industrial models and equip them with an independent circuit breaker.

A leakage protector must be added for outdoor or wet conditions; the pressure washer must never be used with a non-leakage-protected outlet in wet environments.

Personal Protective Equipment

Wear safety goggles when operating rotary tools. For angle grinders and cutters, also wear a dust mask and earplugs; wear flame-resistant work clothes when cutting metal.

For electric breaker and hammer work, wear additional noise-canceling earplugs and safety shoes.

Tool Inspection

Before use, confirm that the power cord is undamaged, the grinding disc / saw blade / drill bit is free of cracks or missing teeth, and the guard is intact.

The rated speed of the angle grinder’s grinding disc must be higher than the tool’s no-load speed. High-pressure washer hoses must not be bulging or aged.

Operating Posture

Hold the tool with both hands to maintain stability, keeping your body out of the plane of rotation. When cutting with an angle grinder, do not apply lateral force.

If the electric hammer encounters rebar while drilling, allow it to reverse and exit.

When cutting long boards with a circular saw, support both ends to prevent blade pinching.

Drain the air compressor tank daily, and manually test the safety valve monthly.

Maintenance and Storage

After work, clean accumulated dust from the housing ventilation slots and guards, and wipe metal surfaces with anti-rust protection.

If not used for an extended period, remove the battery from lithium-ion tools for separate storage and recharge it once a month.

Regularly drain the air compressor tank to prevent rust corrosion; drain the pressure washer pump completely during winter months to prevent freeze-cracking.