Quote:
Originally Posted by Finny61
You can if you want, I hijacked a comment from an answer board on yahoo that has the differences.
Dremel 300
Features:
•Variable speed from 5,000 to 35,000 rpm
•Lightweight design for comfort during prolonged use
•Comfort grip housing for easier handling and better tool control
•"Dove-tail" feature for Dremel-exclusive attachments
•On board tool storage keeps your wrench close at hand
•Click-and-set on/off switch allows precise speed selection
•Cool-running ball bearing construction for smooth and quiet operation
•Replaceable motor brushes extend tool life
Dremel 4000
Features:
•High-performance motor for maximum performance at all speeds
•Electronic feedback for consistent speed under load
•Variable speed provides maximum control and precision
•Separate on/off switch and speed control dial for the perfect speed every time
•Can be used with all Dremel attachments and accessories
•Quick collet lock for fast accessory changes
•Cool-running ball bearing construction for smooth and quiet operation
•Replaceable motor brushes extend tool life
•Five year warranty
The biggest difference that I see, is that the 4000 has the:
"Electronic feedback for consistent speed under load"
This feature is what would make me choose the 4000 over the 300.
This feature helps keep the tool running at the correct rpm, / within reason/ regardless of how hard you work the tool.
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I guess I'll likely only see that benefit if I use it for more moderate sized projects.