BIGSERT THREAD REPAIR KIT

OVERSIZED THREAD REPAIR KITS AND INSERTS

Used for threads which have been previously repaired and failed.

These kits will repair holes that were repaired by helicoil, perma-coil,
uni-coil, recoil or any other similar coil style insert that has failed.

  

BIG-SERT®  is a heavy wall solid bushing, easy to install with positive placement.

BIG-SERT®  gives increased load protection for critical use.

BIG-SERT®  will repair oversize holes which have previously been repaired.

 

KIT CONTENTS:

  • Drill

  • Counterbore

  • Tap

  • Insert Driver

  • Five (5) Steel Inserts

 

BIG-SERT ® THREAD REPAIR KITS AND INSERTS

NOTE:
Lengths marked in RED are the inserts supplied in the kits.
Click here for Engineering data

INCH

METRIC
KIT SIZE
PART
NO.
PRICE

INSERTS

PRICE
KIT SIZE
PART NO.
PRICE
INSERTS PRICE
LENGTH
mm
PART
NO.
LENGTH
mm
PART
NO.
10-32 6605032S  80.37  .187 66150324 2.43

M5x0.8

6605508 72.54 7.6 66155081  4.18
1/4-20 6605420 74.30 .380 66154201 6.34       10.0 66155083 4.18
.500 66154203 6.34            
1/4-28 6605488   74.30 .380 66154481 8.26 M6x1.0 6605610 74.30 9.4 66156101 6.34
.500 66154483 8.26     12.0 66156103 6.34
6605610A
includes
9.4mm tapguide
75.83      
6605610B
includes
12mm tapguide
75.83

 

     
5/16-18 6605561  81.89 .450 66155611 6.62 M7x1.0 6605710   10.0 66157101 6.34
.620 66155613 6.62 M8x1.25 6605812 81.89 11.7 66158121  6.62
      16.2 66158123 6.62
       18.0 66158125 6.62
      M8x1.0 6605810   11.7 66158101 4.59
                 
                 
5/16-24 6605562  81.89

.450

66155621
8.52
M10x1.0 6605011 89.47  9.0 66150111 4.75
.620 66155623  15.0 66150113 4.75
3/8-16 6605381  89.47 .400 66153810 6.82 M10x1.25 6605012 89.47 14.0 66150121 4.75
.520 66153811 6.82       20.0 66150123 4.75
 .750 66153813 6.82       24.5 66150125 4.75
1.000 66153815 6.82            
1.250 66153817 8.78            
3/8-24 6605382  89.47  .520 66153821 6.08 M10x1.5 6605015 89.47  9.4 66150150 4.75
.750 66153823 6.08       11.0 66150157 4.75
            14.0 66150151 4.75
            20.0 66150153 4.75
            24.5 66150155 4.75
            30.0 66150159 5.06
7/16-14 6605761  101.60

.600

66157611 7.32 M11x1.25
Not for deep holes
 
6605112D 191.68 30.0 66151125  5.33
.870 66157613 7.32
1.000 66157615 7.32
1.250 66157617 7.32
7/16-20 6605762 101.60 .600 66157621 9.26 M12x1.5 6605215 110.70 9.2 66152150 7.32
.870 66157623 9.26 16.2 66152151 7.32
      24.0 66152153 7.32
      30.0 66152155 7.39
1/2-13 6605121 122.83  .480   66151210 5.40 M12x1.75 6605217 110.70 12.0 66152170 7.32
.650 66151211 5.40 16.2 66152171 7.32
1.000 66151213 5.40 24.0 66152173 7.32
      30.0 66152175 7.39
1/2-20 6605122 122.83  .650 66151221 6.70 M12x1.25 6605212 110.70 9.0 66152120 7.32
1.000 66151223 9.60 15.0 66152121 7.32
      17.5 66152122 7.32
      24.0 66152123 7.32
      30.0 66152125 7.32
Optional tool
TAP GUIDES INSURE THAT THREADS ARE SQUARE TO SURFACE.
The lower portion of the tap guide should remain as square as possible to the engine surface.
Turn the tap slowly while making sure the guide remains flush.
 
INCH SIZE PART NO. PRICE METRIC SIZE PART NO. PRICE
1/4-20 66275405 10.42 M6x1.0 66275605 10.42
1/4-28 66275405 10.42 M8x1.25 66275825 9.44
5/16-18  66275515 10.42 M10x1.0 66275025 15.08
5/16-24 66275515 10.42 M10x1.25 66275025 15.08
3/8-16 66275315 13.68 M10x1.5 66275025 15.08
3/8-24 66275315 13.68 M12x1.25 66275255 13.68
7/16-14 66257655 17.46 M12x1.5 66275255 13.68
7/16-20 66257655 17.46 M12x1.75 66275255 13.68
1/2-13 66275115 19.64

 

1/2-20 66275115 19.64