Mitutoyo Backs
for Mitutoyo dial indicators and digimatic indicators

Mitutoyo lug back on-center 101306 shown above

Round shaped Mitutoyo backs are held in place with 4 screws. You can rotate the back and position it in any way convenient for your purposes. You can use the same 4 screws that are already on your indicator, or purchase 4 new ones. Different model indicators may use different screws. For that reason, we have listed them under the indicator parts lists (see page 72).

These backs will fit dial indicators as well as digimatic indicators with circular backs.

Flat backs are used when the indicator is held by its stem and the body profile needs to be kept low.

Lug backs allow you to fasten the indicator through the 1/4" hole. The lug can be located on center or off center.

The only things you need to take into consideration are the size of your indicator, whether you want metric or inch configuration, and in some cases, if the indicator is the new style "S" water-proof. These models will have the letter "S" attached.

These backs can be ordered by selecting the linked part numbers below.

Indicator Group 2 (57 mm diameter) mounting screws are not included

• Flat back (all models except below) #101039 ... $10.05
• Flat back for water-proof "S" indicators #21AZB231 ... $11.80
   
• Lug-on-center back for metric indicators #101040 ... $14.20
• Lug-on-center back for inch indicators #101306 ... $14.80
• Lug-on-center back for water-proof "S" indicators #21AZB230 ... $13.75
   
• Magnetic back for all models #900928 ... $35.50
   
• Back with offset lug for all indicators #101167 ... $14.90
   
• Back with 12.7 mm diameter post for all indicators #101169 ... $19.70
   
• Back with screw mount metric M6x1 #136023 ... $17.75
• Back with screw mount inch 1/4-28UNF #101170 ... $19.70
  
• Adjustable back metric M6x1 #136026 ... $19.70
• Adjustable back inch 1/4-28UNF #101168 ... $19.70
   
• Back with dovetail #900008 ... $31.80

Indicator Group 1 (40 mm diameter) mounting screws are not included

• Back with screw mount inch 1/4-28UNF #193174 ... $35.40
• Adjustable back inch 1/4-28UNF #129721 ... $22.45

Indicator Group 3 (78 mm diameter) mounting screws are not included

• Lug-on-center back for inch indicators #100797 ... $17.25