Machinist Level Adjustment Wrenches

[Paul Jones]

The sheet metal adjustment wrench supplied with my 0.0005”/foot machinist level never worked very well for making level calibration adjustments. The level is well built but the adjustment spanner wrench made from thin metal could be improved. I made two types of spanner wrenches from 0.125” dia. 303 stainless steel and 12L14 steel rods. Using the two wrenches together simplifies the process of loosening one adjustment nut while tightening the opposing adjustment nut. The round adjustment nuts have a series of 0.080” dia. sprocket holes evenly spaced around the perimeter. The spanner wrenches are quite small in order to fit into the small access hole on the side of the level. The ID and OD of each spanner wrench is only 0.400” and 0.560” respectively, the handles are 2” long, and the spanner pin diameter is 0.080”. I used a gage pin to determine the best fit diameter for the spanner pins. Spanner wrenches work very well and I can quickly adjust the zero position of the level.

[Altair]

Machined to last. Nice work Paul.

Al

[Catfish]

Nice tools Paul.

[Paul Jones]

Thanks Randy. A little over the top for what was needed for the level but I wanted some practice before making some spanners for a small engine.

[kbalch]

Thanks Paul! I've added your Pin Wrenches to our Machining category, as well as to your builder page: Paul Jones' Homemade Tools. Your receipt:

Pin Wrenches by Paul Jones

tags: machining, level, pin wrench

[DIYer]

I really appreciated the work you did on those tools when I saw them beside the level. Great work!