Description
3M 661X is a diamond lapping film disc: calibrated diamond particles on a polyester film. It is used for lapping and polishing hard materials, ceramics, optical glass, carbides, up to an optical-grade finish.
Specifications
- Mineral: diamond.
- Backing: polyester film.
- Grades: 9, 6 and 1 µm as 254 mm plain discs; 0.1 µm as 128 mm self-adhesive disc.
Why diamond
On a technical ceramic or a carbide, an aluminium oxide abrasive wears almost as fast as the part. Diamond stays sharp and gives a finer finish in less time.
A complete sequence
9 µm shapes the surface, 6 µm refines it, 1 µm prepares the polish, and 0.1 µm gives the final optical-grade finish. Only move to the next grade once the scratch of the previous one has been completely removed.
Plain or self-adhesive
The plain disc is laid on a suitable platen and is changed very quickly between two grades. The self-adhesive disc stays fixed to its platen throughout the work.
In all cases, cleanliness between grades is decisive: a 9 µm residue on a 0.1 µm film is enough to ruin the finish.
See also the lapping films 3M 266X, 668X diamond and 661X in sheets, and our micro-abrasive sheets.
Quick order
All references for this product. Indicate your quantities and add everything to the cart at once.
| Ref. | Grain | Diameter (mm) | Fixation | Availability | Price | Quantity | |
|---|---|---|---|---|---|---|---|
| 0.1 µm / 128 / Sticker | 3M_7000044861 | 0.1 µm | 128 | Sticker | On order | €8,95 | |
| 1.0µm / 254 / Full | 3M_7100066430 | 1.0µm | 254 | Full | On order | €34,58 | |
| 6.0 µ / 254 / Full | 3M_7000105855 | 6.0 µ | 254 | Full | On order | €34,58 | |
| 9.0µm / 254 / Full | 3M_7100097879 | 9.0µm | 254 | Full | On order | €34,58 |
Taxes included. Discounts and shipping calculated at checkout.
Need some advice?
Any doubts about a part number or quantity? Our technicians are available to help at 04 50 52 70 89, and we provide quotes for bulk orders within 24 hours.
- Quote within 24 hours
- Dedicated professional rates
- Technical advice by phone
Frequently Asked Questions
Any other questions?
Call us at 04 50 52 70 89 or write to contact@dagobertindustrie.com.
What are the shipping costs and delivery times?
In-stock items are delivered in 48-72 hours. Made-to-order items are delivered within 2 to 3 weeks. DPD delivery costs €5.95 incl. VAT and is free on purchases of €49 incl. VAT or more.
How to choose the right reference?
The specifications for each reference are detailed in the data sheet and the quick order table. If in doubt, call us at +33 4 50 52 70 89: we will guide you to the reference best suited to your application.
Can I order several items at once?
Yes: the quick order pad lists all part numbers. Enter a quantity for each, then add them all to your cart in one click.
I am a professional, can I get a quote?
Yes, email us at contact@dagobertindustrie.com: we will respond within 24 hours. A business account gives you access to your net prices excluding tax.
Can I return a product?
Individuals have 14 days from receipt to withdraw. The product must be new, complete, and in its original packaging. Consult our refund policy.
Is the payment secure?
Yes. Payment is encrypted by our payment provider: we never have access to your bank details.
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