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Weiler

Weiler 56490 Mounting Mandrel For Cut-Off Wheels W/3/8" Arbor Hole, 1/4" Stem

  • Based on 5,113 reviews
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Availability: 18 left in stock
Fulfilled by CS1 Supply
Arrives Sep 6 – Sep 12
Order within 20 hours and 4 minutes
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Style: Mandrel Only


Features

  • Our mandrel is designed to fit 0.035" to 1/4" thick cut-off wheels .
  • Lightweight, durable and the perfect die grinder accessory.
  • 3/8" Arbor Hole fits Type 1 cutting and snagging discs
  • Flathead notch for tight fit; 1/4" Stem fits most die grinders and air tools
  • Click on the Weiler link at the top of this page to learn more about our 4th generation family-owned company headquarted in Cresco, PA

Description

The Weiler 56490 mandrel securely mounts a Type 1 cutoff wheel with a 3/8" arbor hole onto a grinder that accepts 1/4" stems. The mandrel is designed to fit 0.035"- to 1/4"-thick cutoff wheels and is made of carbon steel for strength and extended tool life. The mandrel consists of a shank and a screw. The shank inserts into a grinder chuck. The arbor end of the shank accepts a cutoff wheel, and the screw portion of the mandrel threads into the shank, securing the wheel to the mandrel.SpecificationsArbor size3/8"Accepted wheel thickness0.035" to 1/4"Shank diameter1/4" Merit Abrasives manufactures abrasives for the deburring and finishing industries. Merit, founded in 1945 and headquartered in Cleveland, OH, meets International Organization for Standardization (ISO) standards 9000 and 14001.

Grit Material: Carbon Steel


Product Dimensions: 4"L x 2"W


Brand: Weiler


Compatible Devices: Die Grinder


Grit Type: Coarse


Compatible Devices: Die Grinder


Grit Type: Coarse


Grit Number: 1


Recommended Uses For Product: Cutting


Additional Features: Lightweight


Compatible Material: Steel


Grit Material Type: Carbon Steel


Construction Type: Cut-off Wheels


Material Type: Carbon Steel


Item Dimensions L x W: 4"L x 2"W


Item Thickness: 0.04 inches


Item Weight: 1.28 ounces


Brand Name: Weiler


Industry Standard Identifier: 56490


Model: 56490


Warranty Description: Manufacturer


Global Trade Identification Number: 02, 07


UPC: 012382564902 640026931393 640024988726 040962564691 636123542341


Manufacturer: Weiler Corporation


Unit Count: 1 Count


Included Components: Weiler 56490


Number of Items: 1


Part Number: Weiler 56490


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 6 – Sep 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great quality tool
Style: Mandrel Only
Very good quality for the price, worked fine as expected , im happy with my purchase that already bought 4 of them, all of them work spins smooth, cero wobble, i think the wobble comes from cut-off wheels being out of round from manufacturing process, i recommends this product the price is cheaper and good quality compared to others more expensive. ... show more
Reviewed in the United States on March 16, 2022 by Alex V.
    • Works as expected
Style: Mandrel Only
If I still had access to a lathe I would've made my own, but this is a high quality choice as well. Fits snug in all the wheels I've put it in so far and I have yet to experience vibration due to an off center disk. From the first time, the threads were flawless and hold tight even after getting warm when the disk gets used too much. 10/10 would buy again (unless I get a lathe of course) ... show more
Reviewed in the United States on February 3, 2019 by Angelica
    • Great mandrel for the price
Style: Mandrel Only
Review Image by Mitch Martin
Review Image by Mitch Martin
Review Image by Mitch Martin
Review Image by Mitch Martin
Got this to use with 3" cut off wheels on my die grinder. For that, it works perfect! There doesn't seem to be any noticable vibrations when the RPMs are turned all the way up. The screw on the top does a great job at holding discs/wheels in place. Be careful not to lose the little washer that is sandwiched in between as this helps to hold things in place. The 1/4" shank is right on size wise, and fits in my angle grinder nice and snug. Would buy again! ... show more
Reviewed in the United States on November 23, 2019 by Mitch Martin
    • Four stars: not ground concentric.
Style: Mandrel Only
I have two of these in two different grinders. They were both (and/or my grinders' collets) a bit out of whack.. One of my grinders normally runs rather smoothly. But with this mandrel chucked in it, it vibrated so bad that the cutoff discs frayed, the switch fell apart, the power leads broke off, and the case "ultrasonically" welded itself together in two spots. I had to tap it with a hammer to get the halves apart. After repairing the grinder, I chucked this mandrel back in and "turned" it true with a thick cutoff disc in another grinder while this mandrel was spinning at 25K rpm. You can easily see where the high/low spots are, due to the black finish. When there's no more black, it should be better. After making it concentric and removing a bit of unnecessary mass from the head, the vibrations went away. I also noticed the discs did not sit flat, so I took the screw out and faced the part that the bottom of the disc sits on, too, using the same method. Unfortunately, I had no way to face the bottom of the disc retaining screw in situ, but it was close enough to begin with that the discs now sit perfectly flat, and I did not need to fudge with it by, say, adding a cardboard washer or an O-ring between the disc and the retaining screw. The grinder is now super smooth and working fantastic with this mandrel. I think I'm gonna dedicate this grinder to cutoff discs, changing them out only with the mandrel screw. I'm afraid I might lose some smoothness/concentricity if I re-chuck the mandrel. These mandrels are made of carbon steel and the screw and threading are fine. They are solid. They are cheap enough that I would recommend them. Just have another grinder or Dremel tool handy, I think after going through this, I would true up any large mandrel in situ on any tool rotating at ridiculous RPMs, unless it were chrome plated and extremely well balanced to begin with. It's very fast and easy. Just keep both grinders oriented the same direction when you grind: tip to tip, butt to butt. If you try to "69" it, the cutting disc will just loosen, itself. This makes me wonder how reversible air grinders keep the cutting disc in place. ... show more
Reviewed in the United States on July 3, 2018 by Shooter McGavin
    • Looks and Feels Quality
Style: Mandrel Only
Review Image by George moser
Review Image by George moser
Review Image by George moser
It's seems like good quality. I bought this for the 3/8" shoulder so I can use cutting wheels and such that fits 3/8" arbor hole accessories for my die grinder. I'll do a 6 month and 1 year review after I use it and it's going to get some use.. As of now I would recommend..
Reviewed in the United States on July 30, 2024 by George moser
    • Works fine with 3 inch disc
Style: Mandrel Only
Works fine but after several times of removing the screw to change disc the screw would work loose during use. Placed Teflon tape on the threads and that solved the problem.
Reviewed in the United States on June 22, 2024 by Larry F
    • tighten up
Style: Mandrel Only
tighten up
Reviewed in the United States on October 18, 2025 by kenneth baker
    • Works good
Style: Mandrel Only
Love the big flat head screw, very easy to tighten & loosen up. As well as the variety of being about to go 1/4” to 3/8@ holes.
Reviewed in the United States on April 22, 2025 by Roger Koeger

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