Vari-Pitch Holesaw, 4-1/2", Bi-Metal

Marsoni

M251S

$76.32

Get it in 3 business days with 1 day shipping. Friday, May 29

Vari-Pitch Holesaw, 4-1/2", Bi-MetalIndustrial quality holesaws with special bi metal construction Fast cutting 4 6 variable tooth provides faster cut than standard configuration Hardened high speed steel teeth are laser welded to a tough shatterproof high carbon steel body to produce a highly durable long lasting holesaw Ideal for cutting mild steel stainless steel aluminum cast iron copper brass wood plastics and composition board Specifications Imperial Diameter 4 1 2" Material Bi

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We offer a 30-day return/exchange service after receiving.
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Definitely better than the old plugs that probably had 80k miles on them. The one star off is because I had a misfire after installing. Not sure if I damaged the plug or what, but a reinstall didn't fix the misfire. In my genius, I rushed to try to gap it and ended up breaking the iridium tip. Put the old plug into cylinder 3 (where the misfire was) and it was fine. Gonna have to get a new single tomorrow at my local shop, but a bit frustrating to get a misfire after install.

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Reviewed in the United States on April 27, 2026

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Britincali

Battle Creek, US

★★★★★ 5

Upgrade from OEM

After seeing a quite ludicrous $403 quote to change 4 spark plugs in a Mazda3 I decided to show my son how easy it is. These were an upgrade from OEM parts. They were gapped perfectly for the car. They took 20mins to fit and work fine.

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Reviewed in the United States on February 11, 2026

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ANDRES FIGUEROA

Boise, US

★★★★★ 5

Very good

The best quality. Runs like new again.

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Reviewed in the United States on March 12, 2026

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Ale

Fort Morgan, US

★★★★★ 1

garbage spark plugs

misfired after 30 minutes of driving cylinder 4 misfire code, left me stranded on the highway with baby in car. “(9621)” at the end of description is a lie, was not compatible with my vehicle even with compatibility test.

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Reviewed in the United States on May 17, 2026

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Matt Teed

Massapequa, US

★★★★★ 5

Actually works on BMW!

I purchased this after the shorter black fluted tool I bought last year failed me. This thing is way better constructed, fits perfect , and actually works to turn it after you can’t turn it by hand any further. Was able to get torqued down to 25nm no problem finally with ease!

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Reviewed in the United States on November 12, 2024