Product description

MoJoTools Cordless Angle Grinder 4-1/2 inch

Key Product Specifications

MoJoTools 21V Brushless Cordless Angle Grinder

Motor Type: High-efficiency brushless motor for greater torque and longer life No-Load Speed: Up to 9,000 RPM for fast cutting and smooth grinding Compatible Disc Size: 4-1/2″ (115 mm), fits 115–125 mm cutting and grinding wheels Arbor Size: 7/8″ (22.2 mm) Spindle Thread: 5/8″-11, compatible with most 115–125 mm discs and accessories Battery Configuration: 2 × 4.0Ah Li-ion batteries for extended runtime

MoJoTools Cordless Angle Grinder 4-1/2 inch

21V brushless cordless angle grinder kit includes everything you need for cutting, grinding, and polishing. Equipped with 2×4.0 Ah Li-ion batteries and a fast 2A charger for extended runtime. The set features 8 discs — 5 metal cutting, 2 grinding, and 1 wood-cutting disc — plus 2 protective guards (standard and reinforced). Includes an adjustable auxiliary handle, wrench, user manual, goggles, gloves, and a durable carrying case for easy transport and safe storage.

High-Power Brushless Angle Grinder 9000 RPM Precision Cutting

21V Brushless Motor · 9000 RPM Speed · 8 Cutting Discs — Delivers 30% more power and 50% longer motor life. Provides stable torque for smooth, precise cuts through metal and wood while reducing heat and noise. Ideal for professional fabrication and heavy-duty projects.

8 Cutting Discs – Ready for Every Task

Features 5 stainless-steel cutting discs, 2 heavy-duty grinding wheels, and 1 precision wood-cutting disc. The larger 125 mm diameter ensures faster cuts and smoother performance, while premium materials deliver superior durability and longer lifespan for professional-grade results.

High-Torque Brushless Motor – 9000 RPM Constant Power Equipped with an industrial-grade brushless motor that maintains 9000 RPM under load with 30 % more torque and 50 % longer life than brushed grinders. Delivers consistent power for metal cutting, rebar trimming, tile grinding, and wood shaping. The built-in smart chip controller prevents overheating and current overload, ensuring stability during heavy-duty work.
Dual 4.0 Ah Li-Ion Batteries – 2 Hours of Continuous Operation Includes two 21 V / 4.0 Ah lithium-ion batteries, each supporting ≈ 60 min of cutting time per charge (light–medium load, 10 mm steel). The fast charger recharges each pack to 100 % in ≈ 90 minutes. LED indicators show real-time power level, so you never run out mid-task. Ideal for continuous outdoor or job-site projects where corded power is unavailable.
Complete 8-Disc Cutting & Grinding Kit – Ready for Any Material Comes with 8 premium discs: 5 × metal cutting, 1 × wood cutting, and 2 × grinding wheels, covering stainless steel, iron, rebar, aluminum, tile, and hardwood. Each disc is balanced for high-speed rotation up to 13,000 RPM burst-proof, guaranteeing safety and precision. Switch instantly between materials — no extra purchases required. Perfect for fabrication shops, construction, carpentry, and DIY metalwork.
Dual Protective Guards + Advanced Safety System Includes 2 interchangeable guards — a reinforced thick guard for heavy-duty metal cutting, and a standard guard for polishing or grinding. The quick-release design lets you adjust the guard angle in under 5 seconds without tools. Additional safety features: Soft-start reduces motor shock and recoil Brake-stop halts rotation in ≤ 2 seconds after release Anti-restart protection prevents accidental start-up after battery change Together, these upgrades meet EN60745 & ANSI B7.1 safety standards.
Ergonomic Comfort + MoJoTools Factory-Level Quality Assurance Lightweight 3.3 lb (1.5 kg) design with two-position anti-slip handle ensures balanced control even during prolonged overhead use. Vibration-damping housing reduces hand fatigue by 40 % compared to standard cordless grinders. MoJoTools products are tested under EU CE / US ETL certification, backed by a 1-year warranty and lifetime customer service. Trusted by global tool brands, MoJoTools delivers professional-grade reliability at a factory-direct price.

Price last updated Mar 05, 2026 08:50:32 UTC. Availability and price subject to change. More info