Cordless straight grinders bring portable, high-speed material removal for detailed sanding, polishing and carving, backed by brushless efficiency and variable speed control. The KATSU Tools Brushless Cordless Die Grinder helps hobbyists and mechanics tackle tight spots with less hand fatigue thanks to a compact barrel grip. Is this the right fit when a compatible battery is not already available?
⚡ At a Glance
- • Grinding Performance: Brushless motor with four variable speeds up to 24,000 rpm for controlled material removal
- • Best for: Woodworking, metalworking, jewellery cleaning/polishing, hobbyists and tight-area automotive work
- • Not ideal for: Users without compatible 18V/21V LXT batteries or those expecting a supplied battery and charger
Straight grinder with a maintenance-free brushless motor and selectable speeds for different tasks. Supplied with 6mm and 6.35mm collet options but sold without battery or charger.
Longer runtime - with a brushless motor
Brushless motors eliminate carbon brushes and run more efficiently than brushed motors, reducing energy loss and mechanical wear. The product description notes battery life approaches almost twice that of brushed equivalents.
Longer run times per battery charge and lower maintenance demands make the tool suitable for extended sessions in the workshop. Users who already own compatible LXT batteries benefit immediately.
Precise material removal - with four variable speeds up to 24,000 rpm
A four-step speed selector allows the motor to be dialled from lower speeds for delicate polishing to higher speeds for aggressive grinding, topping out at 24,000 rpm for rapid material removal.
Variable speeds give control across tasks from jewellery polishing to metal shaping, helping avoid overcutting and heat build-up. Swapping speeds suits a range of accessories and materials.
Comfortable handling for long jobs - with a compact barrel grip
A narrow, compact barrel profile reduces hand strain and improves access in confined spaces, aligning the tool with precision work where control matters.
Reduced fatigue makes longer polishing or carving sessions more manageable, and the slim profile helps reach tight areas in automotive or detailed woodworking tasks.
✨ The 4 Key Reasons for KATSU Tools Brushless Cordless Die Grinder
- Battery compatibility - Works with common 18V/21V LXT batteries for quick swap with existing tool kits
- Supplied collets - Includes 6mm and 6.35mm collets for broad accessory compatibility
- Compact barrel grip - Slim profile improves access in tight or awkward spaces
- Maintenance-free operation - Brushless motor design reduces upkeep and extends motor life
📋 Technical Details at a Glance
- Category: Home Improvement / Power Tool
- Tool type: Cordless straight/die grinder
- Motor: Brushless motor, maintenance free
- Speed: Four variable speeds, up to 24,000 rpm
- Chuck / Collet: Supplied with 6mm and 6.35mm collet options
❓ Frequently Asked Questions
Q: Does the grinder come with a battery and charger?
A: No, the grinder is supplied without a battery or charger.
Q: Which batteries are compatible with the grinder?
A: Compatible with 18V and 21V LXT-range batteries, including models such as BL1850, BL1860B, BL1855, BL1840, BL1830, LXT-400, BL1820B and BL1815 as listed in the description.
Q: What accessories are included in the box?
A: The package includes 6mm and 6.35mm chuck collets for accessory compatibility.
🏆 Our Verdict
Aimed at hobbyists, woodworkers, metalworkers and mechanics who already own compatible LXT batteries, the grinder combines brushless efficiency with selectable high-speed operation for detailed work. The maintenance-free motor and compact barrel grip make it especially useful for tight-space automotive and craft tasks. Best value for those who can pair the tool with existing batteries, offering longer runtime and low upkeep over time.
