Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 23 - Jun 28
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Description
CMT 550-040X Multi-Purpose TCT Hole Saw 1-9/16" (40mm)The CMT 550 040X is a 1 9 16" (40mm) Multi Purpose TCT Hole Saw (Series 550X) with XTREME FAST Push&Lock system. The carbide tipped construction cuts wood, plywood, MDF, laminates, plasterboard, plastics, bricks, aerated concrete, and soft tiles 5X faster than standard hole saws. Compatible with all CMT 550 551 arbors via the Push&Lock quick change system. SPECIFICATIONS Diameter 1 9 16" (40mm) Cutting Depth 2 inches Blade Material Carbide Tipped
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- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.3 ★★★★★
Based on 1785 reviews
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Product Reviews
★★★★★ 5
It seals and keeps things dry
Size: 24 x 35mm
It’s a plastic bag what do you want me to review?
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Reviewed in the United States on March 6, 2026
★★★★★ 4
I used scissors to separate the patches used.
Size: 24 x 35mm
yep, amazing a patch that holds back air.
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Reviewed in the United States on February 14, 2026
★★★★★ 1
Not what ad picture promotes - just patches - no more
Size: 24 x 35mm
For twice amount of money that other tire kit repair offer - it has no glue, no lighter fluid, no scratch tool - just top $ for patches. Show in video how to fix, but after you get it you'll find that you need to go back online and order, glue, lighter fluid, scratch pad, and perhaps even a roller tool. Just order a kit with needed accessories & patches to start with at half the price.
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Reviewed in the United States on December 5, 2024
★★★★★ 5
Rectangle shape covers & adheres well.
Size: 24 x 35mm
This is a rectangle shaped patch that I prefer over circular patches. Covers well and gives new life to inner tubes on the used bicycles I repair to give to charities.
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Reviewed in the United States on November 18, 2025
★★★★★ 3
Just the patch, nothing else
Size: 24 x 35mm, Size: 24 x 35mm
Tried this with cement glue for PVC piping. Not sure if they are a different type of glue. The patch didn't stick at all. The instruction says to use lighter fluid, which I didn't have. Very inconvenient to need all sort of stuff to just patch a few dollar tube. I was hoping a simple process of removing the cover and sticking it on the tube. Several hours of waisted time.
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Reviewed in the United States on July 16, 2023
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