Will this work with the jst rcy terminals

Yes，it works well with this jst rcy terminals.

hi would this work with mcon 1.2 pin terminals

From what I can find out, no it would not because they are solder terminals.

Are the teeth interchangeable? I don't want to buy two whole units, but I'd take one a several sets of teeth.

There are two diferent size openings in a single set of jaws to suit the different crimp sizes. Have used extensively with PH 2.0 connectors. After a bit of practice to get use to handling such small parts, worked very well giving consistent crimps strongly attached to the wires. This is very high quality, well made robust tool. Have no idea if different jaw sizes are available.

Will this tool crimp molex 0.093 connectors

I have used it without any issues on such molex connectors. So for me the answer is yes. Specifically I used it for the following that I bought for a project. 2 Way Molex Connector Kit .093" 2 Pin Plug Socket & Terminals. I use the IWISS SN-28B version of the crimper

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🔧 Crimp like a pro — precision, power, and performance in your hands!

PRECISION POLISHED JAWS - Wire Electrical Discharge Machining ensures flawless, consistent crimps every time.
VERSATILE CRIMPING RANGE - Handles terminals from 0.08 to 1.0 mm² for ultimate flexibility.
DURABLE SPECIAL STEEL BUILD - Engineered with premium steel for long-lasting, reliable performance.
WIDE TERMINAL COMPATIBILITY - Supports XH2.54, Dupont 2.54, 2.8, 3.0, 3.96, 4.8, KF2510, and JST connectors.
RATCHETING SELF RELEASE MECHANISM - Effortless, repeatable crimps with an integral lock for professional results.

The IWISS SN-2549 is a high-precision crimping tool designed for professional-grade electrical connections. Featuring a crimping range of 0.08-1.0 mm², it is crafted from special steel with polished cutting jaws for consistent, flawless crimps. Its ratcheting self-release mechanism ensures ease of use and repeatability, compatible with a wide variety of terminal types including Dupont and JST connectors, making it ideal for battery packs, 3D printers, and RC servos.

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Manufacturer	IWISS Electric Co., Ltd
Part Number	SN-2549
Product Dimensions	19 x 6.5 x 2.79 cm; 390.09 g
Item model number	SN-2549
Size	SN-2549 0.08-1.0 mm²
Colour	Orange
Style	SN-2549 AWG28-18
Material	Steel
Pattern	SN-2549 0.08-1.0mm2
Item Package Quantity	1
Handle material	multicolor
Usage	connecting electrical wires on rechargeable battery packs, battery balancers, battery eliminator circuits, 3D printers, and radio-controlled servos
Batteries included?	No
Batteries Required?	No
Item Weight	390 g

IWISSSN-2549 Crimping Tools for Dupont terminal 0.08-1.0 mm² XH2.54/ 2.54/2.8/3.0/3.96/4.8/KF2510/JST Terminal Crimper Plier Ratcheting Wire Connector Crimping Tool

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