What is a coreless motor and why does it cost more?

The rotor has no iron core, so it runs smoother with far less vibration. Under a microscope, vibration is what walks a bit off the line you are following — that steadiness is what the extra buys.

Is it worth it over the DA84?

If you grind close to components or work under magnification, yes. For general housing and frame work the DA84 does the same job for less.

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2UUL DA85 CVT Pro Coreless Motor Grinder for Phone Repair

Name: 2UUL DA85 CVT Pro Coreless Motor Grinder for Phone Repair
Brand: 2UUL
SKU: 2UUL-DA85
Price: 8500 PKR
Availability: InStock

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The coreless-motor grinder in 2UUL's CVT range, with continuously variable speed control.

Rs 8,500

The coreless-motor grinder in 2UUL's CVT range, with continuously variable speed control. A coreless motor has no iron core in the rotor, so it runs smoother…

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The coreless-motor grinder in 2UUL's CVT range, with continuously variable speed control.

A coreless motor has no iron core in the rotor, so it runs smoother and with noticeably less vibration than a conventional one. On magnified work that vibration is what walks a bit off the line you are trying to follow, which is what you are paying the difference for.

Key features

Coreless motor — smoother running, markedly less vibration
Continuously variable speed control
Top of the 2UUL CVT grinder range

What this is used for

Precision grinding on logic boards
Frame and housing shaping
Cosmetic restoration

Who it's for

Technicians doing precision grinding who need minimal vibration.

Manufacturer description

The coreless-motor grinder in 2UUL's CVT range, with continuously variable speed control. A coreless motor has no iron core in the rotor, so it runs smoother and with noticeably less vibration than a conventional one. On magnified work that vibration is what walks a bit off the line you are trying to follow, which is what you are paying the difference for. • Coreless motor — smoother running, markedly less vibration • Continuously variable speed control • Top of the 2UUL CVT grinder range Compatible with: Rotary bits and tips within the collet range.