Calibration Tips

You will not be able to fix a tape measure that was not accurate to begin with. For this reason we recommend using a Lixer to check accuracy before purchasing a new tape measure. Lixer Tools now offers tape measures which have been carefully selected using the following procedures. We have found different brands have their own range of accuracy and precision. We have tested many brands and sizes. When I have purchased tape measures using a Lixer, I typically reject 5 out of 6 tape measures that I check. 

No matter which brand of tape measure we have tested, we find that accurate end hook placement is a challenge to the manufactures. The end hook movement is also inconsistent from tape measure to tape measure. A new tape measure should be checked for accuracy before you buy it. We have seen many new tape measures that were off by more than 1/32”. A few tape measures have been off more than 1/16”. The manufactures original placement of the end hook must be accurate. 

We have also noticed that some tape measure end hooks are attached at a slight angle by the manufacturer.  This may explain the difference in accuracy between the top edge of the tape measures blade and the bottom edge of the blade.  This is most apparent on tape measures with both standard and metric scales.

Quick Links

Instructions for calibrating tape measures.
If your tape measure is not accurate.
NIST/ISO
Explanation of Equivalents.
A Super Lixer is.

Instructions for calibrating tape measures using the Lixer

6" pull measurement

6" push measurement

  • Check the push and pull measurements of your tape measure against the lines lasered into your Lixer. (These lines are located at 10 cm and at 6" and are approximately .004 of an inch wide. We hold our accuracy to +/- .002 or ½ the width of the laser line.) If your tape measure is accurate to your standards you are done.

If your tape measure is not accurate, you must decide how to correct or identify the problem. The following problems are commonly found.

tape measure end hook adjustment

  • If the pull measurement is short, but the push measurement is okay, check to see if the end hook is bent. If it is bent, use the end hook adjuster slot at the end of the Lixer to adjust the end hook. Check with the Lixer again. If needed adjust end hook until it is accurate.
  • If the end hook is not bent, check the inside of the hook to see if there is a burr left from manufacturing. If there is a burr, use a diamond hone to file it down and check the tape measure with the Lixer again.
  • If the push measurement is long and the pull measurement is okay, check for glue on the end of the end hook. Remove glue and recheck calibration.
  • If the marks on the tape measure are short on the push and long on the pull measurements, the rivets may be too loose. You can try to adjust this using a drift punch and a hammer to tighten the rivets. You should then recheck calibration.
  • Replace tape measures that do not meet your accuracy requirements. The rivets or end hook may be damaged or worn beyond repair.

Measuring in 1/32 and 1/64 of an inch:

Narrowing the range of accuracy will help to improve the quality of your work. Different jobs require different levels of accuracy. For example: a framer may insist on measurements and cuts that are within 1/8 of an inch. A machinist's customer may require accuracy within thousandths of an inch. We find in our cabinet business, that we often work in 32nd's and 64th's of an inch. The 1/16th inch marks are really the reference point from which we work. We approximate measurements that are in between the 1/16th inch marks by visually dividing the 1/16" increment into thirds. We would then apply the +/- to any measurement in the middle third and use an F or S (F=fat and S=shy) to indicate measurements that are in the other two thirds. We would then reference a close fraction and note a larger or smaller measurement with the following marks.

Examples of +/- = 1/32
21/32 = 5/8+
13/32 =7/16-
Examples of F/S= 1/64
41/64 = 5/8F
27/64 = 7/16S

Trying to measure in 1/32 or 1/64 of an inch without verifying your tape measures accuracy with a Lixer would be pointless.

A trusted, accurate tape measure will be your best friend. It will save you time and money by eliminating common measuring errors. A Lixer tape measure calibrator is essential to assess and maintain a tape measure’s accuracy.

Levels are not all equal! We have found they also have their own range of accuracy and precision.

New levels should be inspected before purchase. Manufacturing standards vary. We have seen many new levels that were off. Carefully using a level that is not accurate will consistently produce a slope. Knowing where your level is most accurate will narrow this range of accuracy, saving time and money.

Quick Links

A Super Lixer is.
Instructions for calibrating tape measures.
NIST/ISO
Adjusting your adjustable level.
Using your Super Lixer Level
Using your Super Lixer to check a level vial.
Using your Super Lixer to check a plumb vial.
Sharpening Your Pencil Sharpener.
Finishing your Super Lixer.

A Super Lixer is . . .

A Super Lixer is a Lixer with an adjustable level. The Super Lixer is also laminated with exotic wood and has a pencil sharpener. (For instructions on using the calibration marks and end hook adjuster, see the Instructions for calibrating tape measures. section)

The adjustable feet on our Super Lixer easily permit fine adjustment to the level's accuracy. The adjustable level has been factory calibrated using a Starrett 12" machinist level which has a highly sensitive vial. The level's accuracy will be checked and adjusted upon recertification of the tool.

Your Super Lixer also has a KUM pencil sharpener. Your marking will be more precise using a sharp pencil. (See instructions for Sharpening Your Pencil Sharpener.)

Calibrating your Super Lixer adjustable level:

  • Place your Super Lixer on a clean flat surface that is level.
  • #2 Note bubble position on the Super Lixer.
  • #3 Rotate the Super Lixer end for end 180 degrees. Note the bubble position again.
  • Compare to previous bubble position in #2.
  • Use adjusting feet on the bottom of the Super Lixer to make reading in #2 and #3 equal.
  • Use your freshly calibrated Super Lixer to check new levels. We know from experience that new levels are not always accurate.
  • You could also adjust your super lixer for drainage slope as well. Be sure to note slope on a piece of tape to remind user that level is NOT level.

Using your Super Lixer Level

Use the Super Lixer Level as you would any torpedo level. Because of trusted accuracy, you can also use the Super Lixer Level for the following purposes:

Using your Super Lixer to check a level vial.



  • Calibrate your Super Lixer.
  • Place any level on a clean flat surface that is close to level.
  • Place Super Lixer on top of level.
  • Shim level until Super Lixer bubble shows an accurate reading.
  • Note location of bubble on level, or select a different level.
  • Confirm accuracy by rotating the Super Lixer end for end 180 degrees.

Using your Super Lixer to check a plumb vial. (It may be helpful to have some one assist you with this procedure.)



  • Calibrate your Super Lixer.
  • Place level against a vertical surface.
  • Place a framing square that has been checked for squareness against the level to create a right angle.
  • Place a Super Lixer on the horizontal surface of the square.
  • Shim level until Super Lixer bubble shows an accurate reading.
  • Note location of bubble on plumb vial or select a different level.
  • Confirm accuracy by rotating the Super Lixer end for end 180 degrees.

Sharpening Your Pencil Sharpener

  • Remove the setscrew from your Super Lixer using the proper Allen Wrench.
  • Carefully remove the pencil sharpener from the end of the Super Lixer. Be careful of the delicate wood bridge near the end of your tool.
  • Remove the blade from the pencil sharpener. Use a fine or super fine diamond hone to sharpen the edge of the blade. You should sharpen both the flat and the bevel to achieve the best results.
  • Re-assemble the sharpener and reinstall it in the Super Lixer. Be careful not to force the sharpener into the Super Lixer. Do not over tighten the set screw.
  • Replacement sharpeners are available. They will require slight adjustment to fit properly. We recommend returning your Super Lixer to us for this to be done.
  • Replacement blades are available from KUM thru Internet suppliers. Pencilthings and Alvinco

Finishing your Super Lixer

It is not necessary to do any further sealing or finish on your Super Lixer. Super Lixers are already sealed with Teak Oil.

Contact Us:

Thank you for your interest in Lixer Tools. If you have further questions or need additional information please email us at info@lixertools.com