












🔧 Unlock tight spaces with Klein’s magnetic magic!
The KLEIN TOOLS 50900R Conduit Locknut Wrench Set features three offset wrenches in 1/2, 3/4, and 1-inch sizes, designed specifically for tight spaces. With patented opposing bends, magnetic storage for easy organization, and color-coded etched markings, this durable steel set delivers professional-grade precision and convenience for electricians and tradespeople.












| ASIN | B0C5YSDYN1 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #4,727 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4 in Wrench Sets #95 in Wrenches |
| Brand | KLEIN TOOLS |
| Color | Multi |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,573) |
| Date First Available | May 22, 2023 |
| End Style | hang hole |
| Finish | Brushed |
| Finish Type | Brushed |
| Head Style | Box End |
| Included Components | Locknut Wrenches |
| Is Discontinued By Manufacturer | No |
| Is Non Sparking | Yes |
| Is Racheting | Yes |
| Item Length | 6.46 Inches |
| Item Package Quantity | 1 |
| Item Weight | 3.52 ounces |
| Item model number | 50900r |
| Manufacturer | Klein Tools |
| Material | Blend |
| Measurement Standard | SAE (Inch) |
| Operation Mode | Mechanical |
| Part Number | 50900R |
| Pattern | Solid |
| Power Source | hand_powered |
| Shape | Rectangular |
| Size | Offset |
| Style | Offset |
| UPC | 092644500381 |
| Warranty Description | Please refer to attached warranty document. |
| Wrench Length Style | standard |
S**Y
Excellent Klein Tools Quality, Permanent Addition to My Tool Belt
These have now become a permanent part of my electrical tool belt. They work exactly as intended and make tightening and loosening conduit locknuts much easier than using a screwdriver and hammer. Solid Klein quality, good grip, and a real time-saver on the job. Once you use these, you won’t want to go back.
G**N
Nice electrical tool
These wrenches are well built and the offset works well in boxes.
P**D
Simple small tool that comes in very handy
This is a set of simple small tools that come in very handy to tighten the conduit locknuts, those same types are also used to secure Romex into metallic boxes. Normally I would use a set of pliers, os a screwdriver and small hammer, but close quarters on some boxes make that difficult. These spanners work nicely. I also bought the offest type of this spanner set to accomodate NEMA boxes with a lip.
T**V
Good product but flimsy.
These wrenches are great for tight places but the heads bend and flex too much causing them to slip off the conduit fastener nuts to easily.
R**Y
Great addition
These are a great addition to the tool box. They are slim and the magnet helps them stay together. Work great!
J**N
Amazing product
Amazing and useful for its price. Locknuts stand no chance with this tool. If it ain’t Klein it ain’t mine!
C**N
Maybe I'm missing something?
Maybe I'm missing something but I really struggled with these. I'm an old-school flat-head-and-hammer guy and was looking to modernize but I really struggled to use these tools. I just roughed in a panel with 16 1/2" clamps and really struggled to get these wrenches to "grab" the lock nuts with them spaced so closely to one another, and it kept slipping off when I tried to torque them down. I also had a 1" locknut for the service feed and couldn't even get that size to grab that nut at all. The magnetic storage thing is also funky IMO - it seems neat on a table, but once you put them in a bag the shape of the wrenches doesn't fit anything but a pouch (you can't slide them into a screwdriver/tool slot) and then they don't stay together when you drop in the next item. But maybe it's just me...
M**A
Faster than banging.
Love them , no more beating up my six-in ones.
D**E
These are more expensive, but when you hold them in your hand you'll understand why. They are beefy and thick, with magnets that hold the three aligned together for easy storage. They maintain the Klein reputation of being first class tools that will survive a lifetime. The only thing missing is the offset that some manufacturers offer for getting into recessed spaces.
S**Y
These specific jam nut wrench’s work so much better than water pump pliers or whatever you have been useing Handy . Stay together with magnets and good tooling so they fit well
J**.
Para mantenimiento eléctrico recidencial, comercial eh industrial
G**D
Considering that I've been doing electrical work for years I can't believe I didn't know these tools existed. I've been able to get by just fine but this is so much easier and better and a great addition to my tool bag. Not cheap but I don't anticipate ever replacing them so over time probably good value.
A**R
Efficient
Trustpilot
3 weeks ago
1 month ago