Cordless Die & Straight Grinders

Cordless Die Grinder — Precision and Mobility for Professional Processing

PROFI-INSTRUMENT offers to buy cordless die grinders from leading world manufacturers with official warranty. For over 10 years we have been providing professionals with quality tools in Kyiv with service support.

What is a Cordless Die Grinder and What is it For?

A cordless die grinder is a specialized tool for precise surface processing in hard-to-reach places, equipped with a wireless drive. Unlike angle grinders, straight models have an elongated construction with a spindle located along the body, allowing work in narrow spaces, grooves, holes, and on complex contours. Cordless die grinders combine corded model precision with mobility and autonomy.

Applications of Cordless Die Grinders

Grinding and polishing in hard-to-reach places
Processing internal pipe and hole surfaces
Chamfering and deburring
Engraving and finish processing
Grinding weld seams in difficult places
Working with grooves and channels
Processing complex contours and profiles
Polishing jewelry
Restoration work
Processing wood, metal, plastic, stone

Why Choose a Cordless Die Grinder?

Access to Difficult Places

Elongated compact construction
Work in narrow spaces and grooves
Internal surface processing
Access to complex contours

Mobility

Work without connection to electrical grid
No extension cords needed
Movement around site without restrictions
Work at height and in field conditions

Processing Precision

High rpm for quality grinding
Precise tool control
Minimal vibration
Clean finish processing

Versatility

Wide selection of attachments and abrasives
Work with various materials
From rough processing to polishing
Battery interchangeability within platform

Key Characteristics of Cordless Die Grinders

Battery Voltage

10.8V (12V) — compact light models for precision work
18V — universal for most tasks
36V (2×18V) — maximum power for heavy materials

Rotation Speed

10,000-15,000 rpm — standard models for general work
15,000-25,000 rpm — high-speed for precision processing
25,000+ rpm — professional for polishing and finish processing

Collet Diameter

3 mm — for small attachments and precision work
6 mm — most popular standard
8 mm — for heavy operations

Battery Capacity

2.0-3.0 Ah — light compact models
4.0-5.0 Ah — standard autonomy
6.0+ Ah — maximum work duration

Length and Weight

Compact: 250-300 mm, 1-1.5 kg
Standard: 300-350 mm, 1.5-2 kg
Powerful: 350+ mm, 2-2.5 kg

Important Functions and Systems

Brushless Motor

Longer service life
Higher efficiency
Less maintenance
Stable power

Electronic Speed Control

Smooth rpm adjustment
Adaptation to material and attachment
Processing precision
Overload protection

Fixing Systems

Quick-grip collet
Spindle lock for attachment changes
Reliable abrasive fastening
Minimal runout

Ergonomics

Compact body for one-hand work
Soft rubberized handle
Convenient switch access
Balanced construction

LED Lighting

Work area illumination
Work in dark places
Better visibility in hard-to-reach zones

Types of Attachments for Die Grinders

Grinding Attachments

Abrasive grinding stones of various grit
Metal grinding heads
Ceramic attachments for high speeds
Diamond attachments for hard materials

Polishing Attachments

Soft polishing wheels
Felt attachments
Felt wheels of various hardness
Rubber polishing heads

Cutters and Burrs

Spherical for rounded surfaces
Cylindrical for grooves
Conical for chamfers
Special shapes for specific tasks

Brushes

Wire brushes for cleaning
Soft brushes for polishing
Abrasive brushes for matting

Cutting Discs

Miniature cutting discs
Diamond for hard materials
Reinforced for metal

Popular Work Types

Metalworking

Deburring after cutting and drilling
Grinding weld seams in hard-to-reach places
Polishing metal parts
Surface preparation for welding
Rust and scale removal

Woodworking

Finish processing of complex contours
Internal surface grinding
Engraving and decorative processing
Chamfering
Wood product polishing

Stone Work

Marble and granite grinding
Stone product polishing
Complex shape processing
Restoration work

Jewelry and Hobby

Precise processing of small parts
Engraving
Jewelry polishing
Working with precious metals

Auto Repair

Body part processing in hard-to-reach places
Polishing after putty
Deburring after cutting
Finish processing

How to Choose a Cordless Die Grinder for Your Needs?

For Precision and Small Work

Voltage 10.8-12V
High rpm 20,000+ rpm
Compact dimensions
Light weight 1-1.5 kg
3 mm collet

For Universal Use

Voltage 18V
Rpm 15,000-20,000 rpm
Standard dimensions
6 mm collet
Speed control

For Heavy Professional Work

Voltage 36V (2×18V)
Powerful motor
Capacity 5.0+ Ah
6-8 mm collet
Brushless motor

For Mobile Teams

Maximum autonomy
Multiple batteries included
Fast charging
Compact case

For Universal Masters

Wide speed range
Variety of attachments set
Compatibility with other platform tools
Ergonomics for extended work

Safety Working with Die Grinder

Protective Equipment

Safety glasses mandatory
Dust respirator
Work gloves
Work clothes
Earplugs for extended work

Safety Rules

Check attachment fastening before work
Use intact abrasives without cracks
Firm tool grip
Don't overload grinder
Work with well-secured parts
Follow rotation direction
Regular cooling breaks
Work in ventilated area

Maintenance of Cordless Die Grinder

Regular Maintenance

Clean from dust after each use
Air blow ventilation holes
Check collet condition and clean
Monitor spindle runout
Check housing condition
Clean battery contacts

Collet Chuck Care

Regular cleaning from contamination
Check clamping force
Lubricate threads (if needed)
Replace worn collet

Battery Care

Charge with original charger
Store at optimal temperature
Avoid complete discharge
Partial charging during long storage

Attachment Working Rules

Use attachments of appropriate diameter
Follow maximum rpm for attachment
Regular replacement of worn abrasives
Proper tightening in collet
Check balancing before work

Why Buy Cordless Die Grinder at PROFI-INSTRUMENT Store?

Official supplier of leading brands in Ukraine
Lowest prices on cordless die grinders in Kyiv
Professional equipment from world manufacturers
Wide range of attachments and abrasives
Official manufacturer warranty and service
Expert consultation on selection for specific tasks
Tool testing before purchase
Store in Kyiv with pick-up option
Fast delivery throughout Ukraine

Cordless die grinders from PROFI-INSTRUMENT are professional precision and mobility for processing in hard-to-reach places. Ordering a cordless die grinder at our store means providing yourself with reliable tool for quality finish processing without connection to electrical grid.

Order cordless die grinder in catalog or contact us to select optimal model for your tasks. We will help with choosing attachments, abrasives, and batteries.