IWISS SN-28B Crimper Tool
Terms and Conditions
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An IWISS SN-28B ratcheting crimp tool for small connector terminals, covering 0.1 to 1.0 mm² conductors.
A crimp is a gas tight cold weld, or it is nothing. Taken to full compression with the right die, the terminal and the conductor deform into one piece of metal with no air between them, and the joint outlives the cable. Done with pliers, it is a mechanical grip that looks identical, passes a tug test, and fails eighteen months later once moisture has found its way in. Signal circuits are where this hurts most, because the currents are too small to reveal a poor joint until it becomes an intermittent fault that takes a day to find.
The ratchet is the feature, not a convenience. It will not release until the crimp has reached full compression, so every terminal comes out the same regardless of who squeezed the handles, and regardless of how many hundreds into a loom you are.
Terminal families that look alike often need different dies. This one covers the 2.54 mm to 3.96 mm connector families that dominate hobby and prototype wiring: KF2510, the JST VH, XH and NH series, and Dupont.
Key specifications
| Manufacturer part | IWISS SN-28B |
|---|---|
| Type | Ratcheting crimp tool |
| Suits terminals | KF2510, JST VH, XH and NH, and Dupont 2.54 mm |
| Capacity | 0.1 to 1.0 mm² |
| Wire gauge | AWG 28 to 18 |
| Length | 195 mm |
| Handle | Nylon, ergonomic |
| Weight | 0.4 kg |
Features
- Ratcheting action that will not release until the crimp is complete
- Correct die profile for small connector terminals
- Repeatable results across a whole loom, not just a careful first few
- Nylon handles, sized for repeated use rather than occasional
Compatibility
For KF2510, JST VH, XH and NH, and Dupont 2.54 mm on 0.1 to 1.0 mm² conductors.
It is a small signal tool. It does not crimp high voltage terminals, battery lugs or anything from 4 mm² upwards, which need a hydraulic or heavy ratchet crimper with hex dies.
Check a test crimp before you do a batch. Crimp one, cut through it, and look: a correct crimp shows solid metal with no visible voids and the insulation grip closed separately from the conductor grip. It takes two minutes and saves remaking a loom.
In the box
- 1 x IWISS SN-28B crimp tool
Downloads
No document is published for this tool. For the die profile or the terminals it suits, contact us.