
Which Serpentine Belt Tool Brand Wins?
In our test we compared 11 serpentine belt tool options head to head. ABN came out on top. See the measured results, the runner-up, the budget pick, and a link to the full test video.
Some figures on this page were transcribed from the test video and have not been independently re-verified. Treat the numbers as a close guide and watch the full video for the exact readings.

ABN
Price shown in test: under $50 (exact price sentence appears to be missing from the transcript; this bound comes from the narrator's closing recommendation)
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GearWrench
Price shown in test: $200 or you can buy it elsewhere for a lot less (stated verbatim, unusually high versus the rest of the field, kept as spoken)
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The quick take
The short version of why each pick lands where it does, built straight from the measured results.
“the ABN ran circles around the competition in most categories with the best average finish of 1.9 considering the price of under $50 that would definitely be my choice”
Best in 4 of 11 measurements, including Ratchet Passes, Backdrag (g) and Tensioner Slot (in).
Placed top three in 2 of 10 measurements.
The measured results
Every number below is read straight from the test. Products are listed in the order they finished.
Test 1 Torque Ft (lb)
- 1ABN35.56 ft-lb3rd
third place at that point in testing, edging out the Performance Tool
- 2GearWrench31.798033099999998 ft-lb5th
as rendered in the transcript, a clear floating point corruption artifact; fifth place at that point in testing
- 3Powerbuilt73.1 ft-lb1st
first place with no jaw stretch or damage at all, the best performer in this test
- 4Bilitools26.4 ft-lb3rd
third place at that point in testing
- 5Performance Tool
transcript renders '35.496922' which is corrupted; the narrator's own line introducing the ABN says 'the ABN barely edges out the Performance Tool at 35.56 ft-lb,' implying a value just under 35.56, but the exact figure is not reliably recoverable and is flagged rather than asserted
- 6ARES29.68 ft-lb
- 7DNA Motoring50.3 ft-lb2nd
second place; this figure only survives via the closing recap since the raw mid-video introduction for this brand's own test1 number is missing from the transcript
- 8ICON27.94 ft-lb8th
eighth place at that point in testing
- 9OTC
transcript renders '2716 ft-lbs' as a run-on integer, likely 27.16 ft-lb given the decimal-mangling pattern seen throughout this transcript, flagged not corrected
- 10AllTooetools25.63 ft-lb
described by the narrator as about 2 ft-lb less than the Pittsburgh's 28.74 (the video's own approximate framing, not independently verified arithmetic)
- 11Pittsburgh28.74 ft-lb
Real World Truck Test
- 1ABN
success, two-piece handle adjusts to provide plenty of access swing on the Toyota 4Runner
- 2GearWrench
success, two-piece ratchet isn't quite as precise as the ABN but releases belt tension
- 3Powerbuilt
failed on the Toyota 4Runner, not enough swing space, grouped with Pittsburgh and AllTooetools as insufficient
- 4Bilitools
success, two-piece handle adjusts to provide plenty of access on the Toyota 4Runner
- 5Performance Tool
success, adjustable two-piece handle offers ample access on the Toyota 4Runner
- 6ARES
success on the Toyota 4Runner but not as efficient as the ABN for maximizing wrench positioning and swing
- 7DNA Motoring
success but less efficient than a ratcheting wrench, works if you can keep it seated on the socket
- 8ICON
failed on the Toyota 4Runner using the ratchet alone (not enough swing space); works with an extra handle attachment, though the 21 tooth mechanism makes it more of a challenge
- 9OTC
success, two-piece handle can be adjusted to provide plenty of swing space on the Toyota 4Runner
- 10AllTooetools
failed on the Toyota 4Runner, same insufficient range of motion issue as the Pittsburgh
- 11Pittsburgh
worked fine on a couple of Chevrolets and a Buick, but failed on a Toyota 4Runner, not enough range of motion to release the belt tension
Test 3 Torque Ft (lb)
- 1ABN123.4 ft-lb3rd
third place in the 14 mm Allen socket durability showdown behind Powerbuilt (first) and an apparent second place brand (see videoNotes)
- 2GearWrench
grew by 0.71 mm of jaw damage in the 14 mm Allen socket showdown; no clean torque figure survived in the transcript for this brand at this test
- 3Powerbuilt
described as first place in the 14 mm Allen socket showdown but the transcript cuts off exactly where the number should be ('so the power built finished in first at'), so the figure itself did not survive; separately the wrench handle failed with about 0.22 mm of jaw stretch
- 4Bilitoolsjust over100 ft-lb
10 ft-lb better than the Pittsburgh, heavy damage and the jaw grew by almost a full millimeter
- 5Performance Tooljust over104 ft-lb
when the lower jaw broke; the lower jaw piece was never found and the upper jaw also showed damage
- 6ARES
transcript renders '9834 ft-lb' right after the narrator says it trailed the ABN (123.4) again in this showdown; likely a dropped decimal for roughly 98.34 ft-lb, flagged not corrected. Jaw stretch of 0.86 mm, described as made of a much softer metal than the ABN
- 7DNA Motoring
transcript renders '148.16156210 ft-lb,' a floating point corruption artifact, described as barely beating a reference the narrator calls the 'Harbor Freight Warrior.' No brand called Warrior is in this video's product list; Pittsburgh is this video's Harbor Freight entrant and was tested just before this passage at 90.48 ft-lb, so 'Harbor Freight Warrior' most likely refers to Pittsburgh, but the comparison itself does not cleanly resolve given the corrupted number, and is flagged rather than asserted
- 8ICON97.29 ft-lb
heavy damage, jaw grew by 0.8 mm
- 9OTC87.9 ft-lb
last place in the 14 mm Allen socket showdown, heavy damage, jaw grew by 0.7 mm
- 10AllTooetools105.1 ft-lb
wrench snapped
- 11Pittsburgh90.48 ft-lb
wrench expanded to almost 15 mm, heavy damage
Inner Diameter (mm)
- 1ABN
started at 13.25 mm, wider than average with a larger outer diameter than average
- 2GearWrench13.15 mm
width 6.08 mm, outer diameter 27.3 mm
- 3Powerbuilt13.3 mm
- 4Bilitools13.1 mm
tightest fit of the field at that point, width 6.6 mm, outer diameter 25.15 mm (smallest yet)
- 5Performance Tool12.98 mm
narrow wrench with an average outer diameter
- 6ARES13.12 mm
narrow wrench at 5.9 mm width, 26.84 mm outer diameter
- 9OTC13.16 mm
width 5.79 mm (more narrow than ICON), outer diameter 26.99 mm
- 10AllTooetools13.19 mm
- 11Pittsburgh
started at 13.17 mm
- 7DNA Motoringnot tested
- 8ICONnot tested
Weight (g)
- 2GearWrench3311g
(transcript renders as a run-on integer; likely 33.11 g given the dropped-decimal pattern seen elsewhere in this transcript, flagged not corrected)
- 3Powerbuilt53.78 g
by far the heaviest crowfoot wrench tested
- 4Bilitools31.5 g
- 5Performance Tool33.2 g
- 6ARES3044g
as rendered in the transcript, likely a dropped decimal for roughly 30.44 g given the pattern elsewhere, flagged not corrected
- 7DNA Motoring42.8831694g
as rendered in the transcript, a clear floating point corruption artifact
- 9OTC31.8 g
- 10AllTooetools32.4 g
- 11Pittsburgh31.2 g
(13 mm crowfoot)
- 1ABNnot tested
- 8ICONnot tested
Drive Failure Torque Ft (lb)
- 2GearWrench3/8 in
drive and ratchet survived at 280 ft-lb
- 3Powerbuilt162.475 ft-lb
wrench broke but the ratchet mechanism kept working
- 4Bilitools2011 ft-lb
as rendered in the transcript, likely a dropped decimal for roughly 201.1 ft-lb given every other value in this test clusters between 128 and 280 ft-lb, flagged not corrected; described as not too bad for a budget tool set
- 6ARES3/8 in
drive survived, but the ratchet broke at 240.3 ft-lb
- 7DNA Motoring141.5 ft-lb
moved into last place in this test
- 8ICON
ratchet jumped off the 3/8 in drive on the first attempt with no usable number; on a second attempt it failed at 128 ft-lb
- 9OTC174 ft-lb
finished just behind the $20 Pittsburgh, another light duty result
- 10AllTooetools156.43 ft-lb
failed the same way as the Pittsburgh
- 11Pittsburgh
transcript renders '1868 ft-lb,' roughly 10x higher than every other brand's result in this same test (which cluster between about 128 and 280 ft-lb), so this looks like a dropped decimal point, but is flagged rather than corrected per the rule against silently fixing a lone 10x outlier
- 1ABNnot tested
- 5Performance Toolnot tested
Socket Test Torque Ft (lb)
- 1ABN276.50 ft-lb
survived the 15 mm socket torture test
- 2GearWrench
survived the 15 mm socket test at over 277 ft-lb
- 4Bilitools
survived the 15 mm socket test at over 280 ft-lb
- 5Performance Tool
ran out of performance at 29.7 ft-lb in the 15 mm socket test, the wrench is described as run
- 6ARES
skipped in the 15 mm socket test since the ratchet had already broken; the transcript's '24.3 ft-lb' here is a garbled repeat referencing the earlier 240.3 ft-lb ratchet failure, not a new result
- 7DNA Motoring165.7 ft-lb
described as the super soft socket and wrench destroying each other
- 8ICON
transcript renders '5589 ft-lb,' far outside the 24 to 280 ft-lb range of every other brand in this same test and described as catastrophic ratchet damage from the previous test; flagged as an unreliable figure rather than corrected to any specific value
- 3Powerbuiltnot tested
- 9OTCnot tested
- 10AllTooetoolsnot tested
- 11Pittsburghnot tested
Jaw Stretch Test 1
- 1ABN0.04 mm2nd
tied for second best (with GearWrench, ICON, OTC per the closing recap)
- 4Bilitools
grew from 13.1 to 13.24 mm, by far the most jaw stretch of the brands tested up to that point
- 8ICON0.04 mm2nd
tied for second best per the closing recap
- 9OTC0.04 mm
- 10AllTooetools0.09 mm
more jaw stretch than the Pittsburgh at that point
- 11Pittsburgh
grew to 13.224 mm, 0.07 mm of stretch
- 2GearWrenchnot tested
- 3Powerbuiltnot tested
- 5Performance Toolnot tested
- 6ARESnot tested
- 7DNA Motoringnot tested
All measurements (7 more)+
Clearance (mm)
- 1ABN3.28 mm
stated in transcript for the ratchet and socket clearance; this is roughly 10x lower than every other brand's clearance figure (21 to 34 mm range), so it looks like a dropped digit, flagged rather than corrected
- 3Powerbuilt26.9 mm2nd
second place behind Bilitools
- 4Bilitools
moved into the lead at just under 26 mm before later being passed by Powerbuilt
- 5Performance Tool21.03 mm
best (lowest) clearance value in the field at that point, described as very difficult to beat
- 10AllTooetools27.4 mm
about 7 mm better than the Pittsburgh, no ratcheting wrench included
- 11Pittsburgh34.43 mm
no low profile sockets, the worst clearance figure in the field
- 2GearWrenchnot tested
- 6ARESnot tested
- 7DNA Motoringnot tested
- 8ICONnot tested
- 9OTCnot tested
Ratchet Tooth Count
- 1ABNaround128 teeth
- 2GearWrench72 teeth
- 4Bilitools72 teeth
- 6ARES72 teeth
- 8ICON21 teeth
by far the lowest tooth count in the field
- 3Powerbuiltnot tested
- 5Performance Toolnot tested
- 7DNA Motoringnot tested
- 9OTCnot tested
- 10AllTooetoolsnot tested
- 11Pittsburghnot tested
Ratchet Passes
- 1ABN11.2
right to left passes per full rotation, best of all ratchets tested
- 2GearWrench14.5
back and forth passes, tied for third with ARES
- 4Bilitools11.7
right to left passes, good start but ultimately beaten by the ABN
- 6ARES14.5
back and forth passes, tied for third with GearWrench
- 8ICON21.5
back and forth passes, worst of all ratchets tested
- 3Powerbuiltnot tested
- 5Performance Toolnot tested
- 7DNA Motoringnot tested
- 9OTCnot tested
- 10AllTooetoolsnot tested
- 11Pittsburghnot tested
Backdrag (g)
- 1ABN204 g
best (lowest) of all brands tested
- 2GearWrench396 g2nd
second place behind ABN
- 4Bilitools616 g
- 6ARES534 g3rd
- 8ICON1552 g
more than twice as much as any other brand, by far the worst
- 3Powerbuiltnot tested
- 5Performance Toolnot tested
- 7DNA Motoringnot tested
- 9OTCnot tested
- 10AllTooetoolsnot tested
- 11Pittsburghnot tested
Tensioner Slot (in)
- 1ABN1in
and 5/8 in, best of the three brands given a number in this bench test (Pittsburgh 1-7/8, DNA Motoring 1-3/4)
- 7DNA Motoring1in2nd
and 3/4 in, second best of the three brands given a number in this bench test
- 11Pittsburgh1in
and 7/8 in
- 2GearWrenchnot tested
- 3Powerbuiltnot tested
- 4Bilitoolsnot tested
- 5Performance Toolnot tested
- 6ARESnot tested
- 8ICONnot tested
- 9OTCnot tested
- 10AllTooetoolsnot tested
Subjective Ratchet Rating
- 1ABN
best possible rating of 1, the only brand to earn a 1
- 2GearWrench
tied for second place with a rating of 2 (with Bilitools and ARES)
- 4Bilitools
tied for second place with a rating of 2
- 3Powerbuiltnot tested
- 5Performance Toolnot tested
- 6ARESnot tested
- 7DNA Motoringnot tested
- 8ICONnot tested
- 9OTCnot tested
- 10AllTooetoolsnot tested
- 11Pittsburghnot tested
Overall Average Finish
- 1ABN1.91st
first place overall (best average finish of any brand)
- 2GearWrench4.12nd
second place overall (explicit from the closing recap)
- 3Powerbuiltnot tested
- 4Bilitoolsnot tested
- 5Performance Toolnot tested
- 6ARESnot tested
- 7DNA Motoringnot tested
- 8ICONnot tested
- 9OTCnot tested
- 10AllTooetoolsnot tested
- 11Pittsburghnot tested
How it was tested
- crowfoot wrench maximum torque before rounding a soft coupling nut, plus resulting jaw stretch
- wrench and socket clearance/low profile measurement
- ratchet efficiency: right to left swings needed for one full rotation
- ratchet back drag force in grams using a fishing line and scale
- subjective ratchet swing efficiency rating (1 is best)
- tensioner pulley slot access bench test measured in inches
- real world access and release test on a Toyota 4Runner tensioner (pass or fail)
- 14 mm Allen socket crowfoot durability showdown, torque to failure
- 3/8 in drive breaking-free torque test
- 15 mm socket torque test after removing the 3/8 in drive
- overall average finish rating across all categories
“the ABN ran circles around the competition in most categories with the best average finish of 1.9 considering the price of under $50 that would definitely be my choice”
Data notes and caveats
This transcript has unusually heavy numeric corruption: several results render as clearly broken floating point strings (e.g. '31.798033099999998', '148.16156210', '42.8831694', '35.496922') and several other values look like dropped decimal points producing 10x outliers (Pittsburgh's 3/8 drive test at 1868 ft-lb, Bilitools at 2011 ft-lb, ICON's 15mm socket test at 5589 ft-lb, ARES's weight at 3044 and test3 torque at 9834). All are kept verbatim and flagged rather than silently corrected, per the extraction rules. ABN and DNA Motoring both have missing or corrupted price-introduction sentences; ABN's price was recovered only as a bound ('under $50') from the closing recap, and DNA Motoring's price could not be recovered at all. ICON's own weight, dimensions and country of manufacture appear to have been lost, merged into the preceding GearWrench paragraph, with only its price (shared with OTC at $70) and its test results recoverable. Several brands (Powerbuilt, Performance Tool, OTC, DNA Motoring) are missing from the ratchet-passes/backdrag sub-test and/or the initial 3/8 in drive breaking test with no explicit skip statement given, which may be a genuine omission (e.g. some may lack a ratcheting wrench) or a transcript gap; treated as an unresolved gap rather than assumed either way. The overall average-finish leaderboard in the closing recap only names the top two (ABN 1.9, GearWrench 4.1); no average finish figures survive for the other nine brands. Two Harbor Freight brands appear in this video (Pittsburgh and ICON); a reference late in the video to a 'Harbor Freight Warrior' does not match any brand in the description's product list and most likely refers back to Pittsburgh's own 90.48 ft-lb result stated just before it, but this is flagged rather than asserted as fact. The Matco Tools brand was never tested; the order was placed on indefinite backorder and cancelled, so it never appears in products[].


