See part 404 in the diagram
( Grid squares measure 1x1 inch )
Lock Nut Wrench 782401-1
Manufactured by:
Makita
ERP Number: ERP10154215
Part Number: 782401-1
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PJ7000 !
Delivers in 3-5 Business Days!
PJ7000 !
Product Description
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Genuine Makita replacement part used on Angle Grinders and Plate Joiners. This Wrench allows you to secure a Cutter Blade or a Grinding Wheel to the tool. Angular profile of this item makes tightening/loosening the lock nut easy, as it stands off from the disc. This wrench is made from Metal and it is Sold Individually. Please be aware that this wrench will not fit the 5/8" lock nut. You need a separate wrench for the 5/8" lock nut.
Frequently Purchased Together
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Troubleshooting
This part works with the following brands:
This part works with the following products:
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Customer Part Reviews
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Sorry, we couldn't find any existing reviews that matched. Try using some different or simpler keywords.
easy to find part fast delivery perfect fit
An excellent experience will shop again when I need something
Guest - May 21, 2019
Verified Purchase
Long lost friend
Had my Makita many years and lost my wrench to change wheel. Thank you for your replacement.
Guest - June 11, 2019
Verified Purchase
The 10mm of grinder wrenches
The wrench was a match just like it came from the factory.
Sean - June 27, 2019
Verified Purchase
Great part, fast service
Part just as ordered, could not source locally
Guest - July 2, 2019
Verified Purchase
Needed Tool
The wrench is exactly what I needed to change a sanding disk on my grinder.
Guest - August 15, 2019
Verified Purchase
Hard to find handle
You made my day when I seen the handle, I didn’t want to buy a new saw. Couldn’t be more happier. Thank you, for the fast service. =ƒÖé
Guest - November 13, 2019
Verified Purchase
Worked as expected
Worked as expected nice heavy tool got here fast will order again from this co
Guest - April 11, 2020
Verified Purchase
Great part
New part. Kinda slow and expensive delivery in this age. But, it did the job...
Norman - July 14, 2020
Verified Purchase
great service
Fast shipping. Great product
Frank - May 15, 2021
Verified Purchase
Fit and worked
Locknut wrench fit the lock nut on my Makita 4” grinder perfectly.
Guest - January 14, 2023
Verified Purchase
Customer Repair Instructions
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
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Most Helpful
Most Recent
Sorry, we couldn't find any existing installation instruction that matched.
Old wrenches were barely usable
WG from Mackinaw City, Michigan
3 of 3 people
found this instruction helpful.
Easy
Less than 15 mins
Wrench set
Parts ordered and used the wrenches, worked great
Wrenches were lost.
Thomas from CINCINNATI, Ohio
2 of 2 people
found this instruction helpful.
Easy
Less than 15 mins
Used the wrenches to change grinder wheel.
Wheel cover was missing and needed new wrenches
ben from mount vernon, Washington
1 person
found this instruction helpful.
Easy
Less than 15 mins
Screw drivers
Removed the grinding disk and lined up the wheel cover and put the screws in. And used my new wrenches. Thank you.
Lock nut on cutting wheel on grinder was seized up.
Raymond from Allegany, New York
0 of 1 people
found this instruction helpful.
A Bit Difficult
15 - 30 mins
Tried to use lock nut wrench that came with grinder to loosen lock nut, put could not move it and actually bent the wrench, I ended up using o pipe wrench to break the lock nut free. I therefore had to replace the wrench and lock nuts.
Just missing tools to unlock the disc from the grinder.
Randal from Honolulu, Hawaii
0 of 1 people
found this instruction helpful.
Easy
Less than 15 mins
Wrench set
Unlocked the disc with the new wrenches and installed the new grinder disc.
Needed new blade but tool was lost for changing it
Verna from Benicia, California
0 of 1 people
found this instruction helpful.
Easy
Less than 15 mins
Took off old grinder wheel put on new one
Missing parts for changing grinding accessories
Robert from Mamaroneck, New York
0 of 1 people
found this instruction helpful.
Easy
Less than 15 mins
Wrench set
The tools provided by eReplacement Parts were perfect to get the job done. Thanks very much
Had lost lock nut wrench
Bonnie from Harker Heights, Texas
0 of 1 people
found this instruction helpful.
Easy
Less than 15 mins
After receiving lock nut wrench, able to complete job
I needed a replacement handle and had lost the wrenches needed to change discs easily.
Robert from Coral Springs , Florida
0 of 1 people
found this instruction helpful.
Easy
Less than 15 mins
These parts were direct replacements and worked as designed. Thanks
Lost original wrenches for removing discs
Tommy from North Richland Hills, Texas
0 of 1 people
found this instruction helpful.
Easy
Less than 15 mins
Replaced the worn out disc
Model Cross Reference
This part works with the following models:
ERP Number: ERP10154215 782401-1
Brand
Model Number
Description
Makita
3901
Biscuit Joiner
- Plate Joiner
Makita
9501B
Angle Grinder
- Grinder
Makita
9501BKIT
Grinder
- Grinder
Makita
9514B
Angle Grinder
- Disc Grinder
Makita
9523NBH
Angle Grinder
- Angle Grinder
Makita
N9501BZ
Angle Grinder
- Disc Grinder
Makita
N9514B
Angle Grinder
- Grinder
Makita
PC1100
Planer Jointer
- Concrete Planer
Makita
PJ7000
Biscuit Joiner
- Plate Joiner
Makita
XJP03Z
Planer Jointer
- Jointer
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Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
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