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  95.25  .187 66150324 5.10

M5x0.8

6605508 79.95 7.6 66155081  3.39
1/4-20 6605420 81.89 .380 66154201 8.14 10.0 66155083 3.39
.500 66154203 8.14
1/4-28 6605448   81.89 .380 66154481 10.60 M6x1.0 6605610 81.89 9.4 66156101 8.14
.500 66154483 10.60 12.0 66156103 8.14
6605610A
includes
9.4mm tapguide
96.83
6605610B
includes
12mm tapguide
96.83

5/16-18 6605561  90.25 .450 66155611 8.49 M7x1.0 6605710

110.70

10.0 66157101 4.91
.620 66155613 8.49 M8x1.25 6605812 90.25 11.7 66158121  8.49
16.2 66158123 8.49
 18.0 66158125 8.49
M8x1.0 6605810 90.25 11.7 66158101 8.49
5/16-24 6605562  90.25

.450

66155621
10.93
M10x1.0 6605011 98.60  9.0 66150111 8.76
.620 66155623  15.0 66150113 8.76
3/8-16 6605381  98.60 .400 66153810 8.76 M10x1.25 6605012 98.60 14.0 66150121 8.76
.520 66153811 8.76 20.0 66150123 8.76
 .750 66153813 8.76 24.5 66150125 7.92
1.000 66153815 8.76
1.250 66153817 11.26
3/8-24 6605382  98.60  .520 66153821 11.26 M10x1.5 6605015 98.60  9.4 66150150 6.25
.750 66153823 11.26 11.0 66150157 6.82
14.0 66150151 8.76
20.0 66150153 8.76
24.5 66150155 7.92
30.0 66150159 6.82
7/16-14 6605761  111.97

.600

66157611 9.39 M11x1.25
Not for deep holes
 
6605112D 152.11 30.0 66151125  9.00
.870 66157613 9.39
1.000 66157615 9.39
1.250 66157617 9.39
7/16-20 6605762 111.97 .600 66157621 11.88 M12x1.5 6605215 122.00 9.2 66152150 9.39
.870 66157623 11.88 16.2 66152151 9.39
24.0 66152153 9.39
30.0 66152155 9.00
1/2-13 6605121 135.37  .480   66151210 6.45 M12x1.75 6605217 122.00 12.0 66152170 5.41
.650 66151211 9.94 16.2 66152171 5.41
1.000 66151213 9.94 24.0 66152173 5.41
30.0 66152175 9.00
1/2-20 6605122 135.37  .650 66151221 12.32 M12x1.25 6605212 122.00 9.0 66152120 9.39
1.000 66151223 12.32 15.0 66152121 6.71
17.5 66152122 6.71
24.0 66152123 6.71
30.0 66152125 9.00
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 9.12 M6x1.0 66275605 9.12
1/4-28 66275405 9.12 M8x1.25 66275825 8.26
5/16-18  66275515 7.58 M10x1.0 66275025 13.20
5/16-24 66275515 7.58 M10x1.25 66275025 13.20
3/8-16 66275315 11.97 M12x1.25 66275255 11.97
3/8-24 66275315 11.97 M12x1.5 66275255 11.97
7/16-14 66257655 15.28 M12x1.75 66275255 11.97
7/16-20 66257655 15.28

1/2-13 66275115 17.19
1/2-20 66275115 17.19