Description
Overview:
The Tool Opener for Makita 4340CT and 4340FCT Jigsaw, Manufacturer Part Number (MPN) 417842-9, is a Genuine Makita OEM component used within the blade opening/release mechanism of selected Makita corded jigsaws. Made from durable, factory-specified polymer with reinforced sections, it engages precisely with the jigsaw’s blade clamp to open and close the holder smoothly. This restores consistent, accurate blade changes and helps maintain cutting performance under regular site or workshop use. Designed for a direct fit on compatible models, it installs without modification and returns the mechanism to its intended operation. Suitable for tradespeople and DIY users, this genuine spare part supports reliable jigsaw upkeep and reduces downtime caused by a worn or sticking blade release system.
Key Features:
- Genuine Makita OEM part for assured compatibility and reliability
- Direct replacement for the original opener; no adaptation required
- Restores smooth blade opening and release for quick, repeatable changes
- Precision-moulded to engage correctly with the blade holder hardware
- Robust, workshop-grade construction to withstand frequent use
- Helps maintain cutting accuracy by ensuring the clamp operates as designed
- Straightforward to fit during routine servicing or repair
- Clearly identified by Makita reference 417842-9 for easy parts matching
- Supports long service life of the jigsaw by replacing worn or damaged components
Typical Applications:
Used inside the blade change mechanism of compatible Makita jigsaws when the clamp fails to open smoothly, sticks, or shows wear. Suitable for routine maintenance or repair after heavy use, helping keep cutting performance consistent on wood, plastics, and light metals.
Also known as:
Jigsaw tool opener, blade clamp opener, blade release lever, opener 4340/SMA400, jigsaw blade change opener.
Fits Models:
4340CT, 4340FCT, 4341CT, 4341FCT
Alternate Part Numbers:
417842-9, 417842 9, 4178429
Product Specifications
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