2UUL FD21 C210-Big-K – Set of 5 bits
2UUL FD21 C210-Big-K – Set of 5 bits
2UUL FD21 C210-Big-K – Set of 5 Tips
The 2UUL FD21 set includes five professional Big-K-shaped tips with a width of 4.0 mm, designed for soldering stations compatible with the series C210. Thanks to their extended working surface, they ensure fast and stable heat transfer, making it easier to work with components with a high thermal mass.
FD21 tips are perfect for soldering large pads, desoldering EMI shields, repairing FPC connectors, and charging ports. This is an indispensable tool in GSM repair shops, phone repair, and electronics repair shops, where precision and high thermal efficiency are essential.
Thanks to their robust construction and oxidation resistance, 2UUL FD21 tips guarantee long life and reliability even under intensive use.
2UUL FD21 C210-Big-K – Set of 5 tips
The 2UUL FD21 set includes five high-performance Big-K shaped tips (4.0 mm wide) compatible with soldering stations that support C210 series tips. Designed for tasks requiring greater heat transfer and a wide contact area – ideal for large pads, EMI shields, and ground planes.
Big-K tips offer a larger working surface, which translates into stable heating and rapid heat transfer to components with a high thermal mass. This makes them suitable for both soldering and desoldering large connectors, as well as for reflow soldering on wide pads and for phone repairs (EMI shields, FPC connectors, charging ports).
Why choose the 2UUL FD21?
-
Wide 4.0mm blade (Big-K)
Larger contact surface = faster heat transfer and even heating of large solder pads.
-
High thermal efficiency
Fast heating and stable temperature make working with components with high thermal mass easier.
-
Durability and resistance
High-quality materials ensure long life and resistance to wear and oxidation.
-
C210 compatible
The tips are compatible with stations supporting the C210 series – widely used in GSM, laptop, and electronics repair shops.

Extended 4.0mm blade and continuous temperature control.
Applications
- Soldering large components: ground planes, EMI shields, high-gauge connectors Surfaces.
- Desoldering and cleaning solder pads – also for components with high thermal mass (e.g., power transistors, capacitors).
- Reflow on wide pads or multi-pin connectors.
- Phone repairs: EMI shields, FPC connectors, charging ports – stable heat supply without overheating adjacent components.
- Soldering jumper wires on large pads.

Pad Drag Tin – wide and even heat distribution.

For CPU drag tin – working on dense contact pads.

Middle layer drag tin – working with braid and controlled heat application.
Product Specifications
| Model / Code: | 2UUL FD21 (C210-Big-K) |
| Compatibility: | Soldering stations supporting C210 series tips |
| Tip shape and width: | Big-K, 4.0 mm |
| Quantity in the set: | 5 pieces |
| Arrow dimensions: | 82 × 4 × 4 mm |
| Package dimensions: | 99 × 54 × 9 mm |
| Net / gross weight: | 14 g / 31 g |
| Material and workmanship: | High durability, resistance to wear and oxidation. |

Technical parameters - set of 5 Big-K bits.
Package Contents
- 5 × 2UUL FD21 C210-Big-K Arrowheads (4.0 mm)
Application: GSM services, consumer electronics, laptop and mobile device repairs. Ideal for working with large pads, EMI shields, ground planes, wide-area connectors, and for tinning CPU pads.
No customer reviews for the moment.
You need to be logged in or create an account to give your appreciation of a review.