
Which Diagonal Cutting Pliers (wire Cutters) Brand Wins?
This head-to-head test of 15 diagonal cutting pliers (wire cutters) options has the measured results for each. See how they ranked and watch the full test video.
Illinois Industrial Tool
Price shown in test: $8
Affiliate link. We may earn a commission at no extra cost to you.
The measured results
Every number below is read straight from the test. Products are listed in the order they finished.
Claims
- 1Illinois Industrial Tool
drop forged heat treated steel; precision machine jaws
- 2Kobalt
durable chrome nickel steel; hardened precision machine jaws claimed to last longer and grip better; high leverage design; induction hardened cutting edges claimed to stay sharper longer
- 3Craftsman
compound action design claimed for increased cutting force; drop forged steel for strength and durability; induction hardened cutting edges claimed to stay sharper longer
- 4Doyle
cuts ACSR, screws, nails, and most hardened wire; rust protection claimed to reduce corrosion and increase tool life; riveted joint advertised for smooth action with no wobble
- 5DeWalt
compound action diagonal pliers; claims 70% more cutting power; guaranteed tough
- 6Irwin
nickel chromium steel pliers construction; induction hardened cutting edges claimed to stay sharper longer
- 7Channellock
precision machine knife and anvil style cutting edges claimed to ensure perfect mating and superior cutting edge life; uses high carbon C1080 steel claimed for superior performance
- 8C.S. Osborne
drop forged nippers described as ideal for cutting hog rings or wire
- 9Milwaukee
claims up to two times more cuts; iron carbide edge; engineered by Milwaukee Tool, professionally made in China
- 10Klein Tools
induction hardened cutting knives claimed for long life; high leverage design claimed to have 36% more cutting power; hot riveted joint claimed for smooth action and no handle wobble
- 11Southwire
claims 15% easier cuts; fire rivet technology claimed for smooth opening; fire edge induction hardened blades claimed to cut nails, screws, and ACSR wire
- 12Wiha
dynamic joint claimed to require 40% less effort; low wear lap joint riveted, claimed to withstand high levels of load; 64 HRC induction hardened; manufactured with global components in Vietnam
- 13Knipex
claims high cutting performance with minimum effort due to optimum coordination of cutting edge angle and transmission ratio; high leverage diagonal cutters claimed for very tough continuous use; induction hardened cutting edges
- 14Mac Tools
heat treated claimed to provide consistent performance; forged alloy steel claimed for durability
- 15Snap-on
small joint in combination with longer handles claimed to increase leverage by 19%; parallel cutting edges engineered, claimed to provide repeated cuts for hard wire and even spring steel
Weight
- 1Illinois Industrial Tool215.3 g
the lightest tested
- 2Kobalt301.8 g
- 3Craftsman317.3 g
the heaviest yet at that point in the lineup
- 4Doyle275 g
pretty light
- 5DeWalt253 g
lighter than Doyle
- 6Irwin308.5 g2nd
second heaviest yet at that point
- 7Channellock299.4 g
nearly the same as Kobalt
- 8C.S. Osborne361.7 g
by far the heaviest yet at that point
- 9Milwaukee282.5 g
- 10Klein Tools290 g
- 11Southwire316.7 g
- 12Wiha299.3 g
- 13Knipex296.5 g
- 14Mac Tools299.5 g
nearly the same as Channellock
- 15Snap-on343.6 g2nd
second heaviest yet at that point
Nail Test
- 1Illinois Industrial Tool195 lb
narrator says you need a very strong hand to use these on a nail
- 2Kobalt158 lb
performed a lot better than Illinois Industrial Tool despite the shorter handles offering less leverage
- 3Craftsman102 lb
the best yet at that point due to a leverage advantage from its unique design
- 4Doyle96 lb
better than Craftsman, moved into the lead at that point
- 5DeWalt108 lb
nearly the same as Craftsman and Doyle
- 6Irwin78 lb
by far the best yet at that point, taking the lead from Doyle
- 7Channellock73 lb
took the lead from Irwin, the best of all brands tested on this test
- 8C.S. Osborne184 lb
required a lot of force
- 9Milwaukee163 lb
- 10Klein Tools89 lb
performed much better than average
- 11Southwire85 lb
slightly better than Klein Tools
- 12Wiha103 lb
performed better than average
- 13Knipex116 lb
- 14Mac Tools157 lb
- 15Snap-on114 lb
nearly the same as Knipex
Screw Test
- 1Illinois Industrial Tool
did not cut through the deck screw even at 344 lb of pressure and was left badly bent, no longer serviceable
- 2Kobalt211 lb
a very clean cut; a little more handle wobble afterward but no damage to the cutters
- 3Craftsman184 lb
cutters still in great shape but quite a bit of handle wobble
- 4Doyle156 lb
the best yet at that point; loosened up some with quite a bit of handle wobble and a small amount of wear to the cutters
- 5DeWalt154 lb
barely finished ahead of Doyle to move into the lead at that point; still in good shape with no visible damage to the cutters
- 6Irwin135 lb
by far the best yet at that point, 19 lb less than DeWalt
- 7Channellock145 lb2nd
second place just behind Irwin
- 8C.S. Osborne243 lb
took a lot of effort; small amount of damage to one of the cutters, handle wobble about the same
- 9Milwaukee228 lb
no damage to the cutters and they're still properly aligned
- 10Klein Tools153 lb
pliers seem as good as new, no damage to the cutters
- 11Southwire133 lb
won this test outright, two pounds less than Irwin; seems as good as new, no damage to the cutters
- 12Wiha167 lb
- 13Knipex196 lb
- 14Mac Tools202 lb
some damage to the cutters, small amount of handle wobble
- 15Snap-on191 lb
cutters in great shape, but a gap appeared between the cutters when the jaws are fully closed, indicating the rivet or pliers had bent
Drill Bit Test
- 1Illinois Industrial Tool
not tested, did not survive the screw test
- 2Kobalt220 lb
no damage to the cutters
- 3Craftsman
broke at 268 lb, the drill bit was too much for it
- 4Doyle207 lb
made very easy work of it, cutters still properly aligned and in great shape
- 5DeWalt
reached failure load at 327 lb and did not cut through the drill bit; one handle bent and the pliers no longer close properly, with some damage to the cutters
- 6Irwin191 lb
took the lead from Doyle
- 7Channellock
narrator predicted it should cut through around 200 lb given its high leverage design, but the rivet, described as a lot smaller than some other brands, let go at 256 lb; some damage to the cutters, which don't appear as hard as Kobalt, Doyle, and Irwin
- 8C.S. Osborne295 lb
cutters aren't as hard as some other brands, small amount of damage to both cutters
- 9Milwaukee274 lb
survived the pressure and cut through the drill bit with no damage to the cutters, despite a more compact design than some other brands
- 10Klein Tools161 lb
won this test outright, by far the best yet; small amount of damage to the cutters
- 11Southwire206 lb
made easy work of it, cutters still look as good as new
- 12Wiha188 lb2nd
moved into second place behind Klein Tools; cutters still look as good as new
- 13Knipex
just wouldn't give up and finally made the cut at 328 lb; small amount of damage to the cutters
- 14Mac Tools
wouldn't give up and cut through the drill bit at 358 lb; cutters experienced quite a bit of damage
- 15Snap-on
the drill bit was a little too much for it and the rivet let go at 345 lb; small amount of damage to the cutters
Socket Adapter Test
- 1Illinois Industrial Tool
not tested
- 2Kobalt
peaked at 462 lb before finally breaking; cutters left a good size dent in the socket adapter; one jaw broke off but the cutters held up well
- 3Craftsman
not tested, already broken
- 4Doyle
began to fail at 550 lb, the rivet broke and there was quite a bit of damage to the cutters; narrator calls it a great job by the brand
- 5DeWalt
not tested, already failed
- 6Irwin
one jaw broke at 320 lb; cutters still in great shape afterward, described as very impressive
- 7Channellock
not tested, already broken
- 8C.S. Osborne
handle finally snapped at 469 lb; small amount of damage to the cutters; narrator calls it a very respectable job
- 9Milwaukee
one jaw broke off at 379 lb; small amount of damage to both cutters; narrator calls it a very good job considering the compact size of the jaws
- 10Klein Tools
spit out the rivet at 485 lb; handles and jaws did not bend or break; some minor damage to the cutters; narrator calls it a very impressive job
- 11Southwire
put up a good effort but the jaws finally broke at 412 lb; cutters still look nearly as good as new despite contact with the hardened socket adapter; narrator calls it very impressive
- 12Wiha
proved very tough and finally broke at 449 lb, breaking at the pivot point/axle; cutters did experience some damage
- 13Knipex
refused to spit out parts or even break; at 579 lb the handle finally began to bend but never broke; cutters still in really good shape considering the weight applied; narrator calls it very impressive
- 14Mac Tools
jaws began to hyperextend at 550 lb; at a very impressive 985 lb, after a large popping sound, the jaws were finally badly hyperextended; the hydraulic press had nearly bottomed out so the narrator ended the test there; quite a bit of damage to the cutters and jaws badly bent, but the pliers stayed in one piece
- 15Snap-on
not tested, already broken
Fit
- 3Craftsman
quite a bit of wobble moving the handles back and forth
- 4Doyle
unlike the advertised no-wobble claim, transcript notes quite a bit of wobble in the joint, just like the Craftsman
- 6Irwin
definitely better than the Doyle, but there is quite a bit of wobble
- 7Channellock
very good craftsmanship, absolutely no wobble
- 8C.S. Osborne
not quite as tight as some of the other brands
- 9Milwaukee
nice tight fit
- 10Klein Tools
not quite as tight as some of the other brands
- 11Southwire
not quite as tight as some of the other brands
- 12Wiha
no wobble
- 13Knipex
nice and tight fit
- 14Mac Tools
does not provide a very tight fit
- 15Snap-on
nice and tight fit
- 1Illinois Industrial Toolnot tested
- 2Kobaltnot tested
- 5DeWaltnot tested
Leverage geometry
- 2Kobalt7.24 mm
from axle center to cutter opening, though handles are an inch shorter than the other brands
- 6Irwin
shortest distance from axle/rivet center to cutter opening of any brand tested, at 6.28 mm
- 11Southwire
nearly the shortest distance from axle center to cutter opening of any brand at 6.48 mm, close behind Irwin
- 1Illinois Industrial Toolnot tested
- 3Craftsmannot tested
- 4Doylenot tested
- 5DeWaltnot tested
- 7Channellocknot tested
- 8C.S. Osbornenot tested
- 9Milwaukeenot tested
- 10Klein Toolsnot tested
- 12Wihanot tested
- 13Knipexnot tested
- 14Mac Toolsnot tested
- 15Snap-onnot tested
All measurements (3 more)+
Jaw limitation
- 1Illinois Industrial Tool
cutters don't extend inward to the pivot point, so the nail could not be placed all the way inward against the pivot point
- 5DeWalt
jaw opening is pretty limited, so the nail was too large to rest against the pivot point
- 2Kobaltnot tested
- 3Craftsmannot tested
- 4Doylenot tested
- 6Irwinnot tested
- 7Channellocknot tested
- 8C.S. Osbornenot tested
- 9Milwaukeenot tested
- 10Klein Toolsnot tested
- 11Southwirenot tested
- 12Wihanot tested
- 13Knipexnot tested
- 14Mac Toolsnot tested
- 15Snap-onnot tested
Axle/joint
- 1Illinois Industrial Tool
very loose axle joint, a lot of wobble causing very inconsistent results
- 2Kobaltnot tested
- 3Craftsmannot tested
- 4Doylenot tested
- 5DeWaltnot tested
- 6Irwinnot tested
- 7Channellocknot tested
- 8C.S. Osbornenot tested
- 9Milwaukeenot tested
- 10Klein Toolsnot tested
- 11Southwirenot tested
- 12Wihanot tested
- 13Knipexnot tested
- 14Mac Toolsnot tested
- 15Snap-onnot tested
Length
- 2Kobalt7 in
shorter than all 14 other brands tested at 8 in
- 1Illinois Industrial Toolnot tested
- 3Craftsmannot tested
- 4Doylenot tested
- 5DeWaltnot tested
- 6Irwinnot tested
- 7Channellocknot tested
- 8C.S. Osbornenot tested
- 9Milwaukeenot tested
- 10Klein Toolsnot tested
- 11Southwirenot tested
- 12Wihanot tested
- 13Knipexnot tested
- 14Mac Toolsnot tested
- 15Snap-onnot tested
How it was tested
- squeezing force, measured in lb via a hydraulic press on the handle end, required to cut through a 16-penny nail
- force required to cut through a deck screw
- force required to cut through a 3/16 in drill bit (a durability/failure test)
- force required to cut through or destroy a hardened socket adapter, beyond the tools' intended use (an extreme durability/failure test)
- leverage geometry comparison: distance from axle/rivet center to the cutter opening, measured on select brands
- weight comparison across all brands tested
“If you're looking for the pliers that are going to last the longest, the Knipex brand is very well built and will probably last the longest, but it's very expensive and it takes more effort to make a cut. For that reason, I like pliers that offer a little bit more leverage, which includes the Irwin as well as the Channellocks and they are far less expensive at only 18 and 21 dollars respectively.”


