Will this work for, e.g., building a custom (DB25) serial cable?

I used this crimper to build DB9 and DB15. It does crimp both male and female dsub pins. Quite nicely too. I would recommend having a couple of dsub pin extractor/insertion tools on hand when building the plugs...

Can I use SN-2549 for bouth jst xh2.54 and jst ph2.0 ?

For perfect crimping, I suggest you to use SN-01BM for PH2.0 and SN-28B for XH2.54

Does this work with 2.8mm car motorcycle electrical connectors? https://www.amazon.com/dp/b075ldmnwk

I suggest yu to use SN-2549 or you can send image or technical data to me for confirmation .

Will these work on jst-xh connectors for lipo battery balancer terminals?

Yes, it can work with JST-xh 2.50mm connectors.

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IWISS XH2.54/3.96,PH2.0,PX,KK254,JST,Molex,Dupont, D-SUB Terminal Crimping Tool SN-01BM Rachet Crimper AWG28-20 (0.08-0.5mm ²)

IWISS XH2.54/3.96,PH2.0,PX,KK254,JST,Molex,Dupont, D-SUB Terminal Crimping Tool SN-01BM Rachet Crimper AWG28-20 (0.08-0.5mm ²)

Product ID: 384434875

Details

Brand
IWISS
Colour
As shown in
Grip Type
Ergonomic
Handle Material
Alloy Steel
Item Weight
0.01 Ounces

💪50% less effort with ergonomic design

🔩Compatible with 8+ connector types

⚙️Crimps AWG28-20 (0.08-0.5mm²)

55374CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Crimp smarter, not harder — the pro’s choice for flawless connections!

BUILT TO LAST - Special steel construction ensures durability and consistent high-quality crimps over repeated use.
SMART SAFETY LOCK - Integral self-releasing lock guarantees secure crimps and prevents tool damage or user fatigue.
PRECISION PERFECTED - Wire EDM cutting jaws with mirror-polished finish for flawless crimps every time.
EFFORTLESS EFFICIENCY - Ergonomic ratchet mechanism reduces crimping force by 50%, saving your energy on every job.
UNIVERSAL COMPATIBILITY - Seamlessly works with XH2.54/3.96, PH2.0, PX, KK254, JST, Molex, Dupont, and D-SUB terminals.

The IWISS SN-01BM is a precision-engineered ratchet crimping tool designed for AWG28-20 wires (0.08-0.5mm²). Featuring wire EDM polished jaws and a special steel build, it delivers consistent, high-quality crimps across a wide range of terminal types including JST, Molex, and Dupont. Its ergonomic design reduces crimping effort by 50%, making it ideal for professionals demanding efficiency and durability in electronics, automotive, aerospace, and industrial applications.

Specifications

ASIN	B019ARWWFY
Best Sellers Rank	#124,564 in Home Improvement ( See Top 100 in Home Improvement ) #15,764 in Hand Tools (Home Improvement)
Brand Name	IWISS
Colour	As shown in the image
Country of Publication	USA
Customer Reviews	4.5 4.5 out of 5 stars (246)
Grip Type	Ergonomic
Handle Material	Alloy Steel
Handle Type	Ergonomic
Included Components	1
Item Weight	0.01 Ounces
Manufacturer	Iwiss
Manufacturer Part Number	SN Serie
Model Number	SN-01BM
Number of Items	1
Size	As shown in the image
Specific Uses For Product	electronic and electric, information communication, automobile electronic, safety production, space and aviation, petrochemical industry and building industry
UPC	709619250492

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