10 Packs of Heavy Duty Wedge and Feather Shims, Abuff 5/8 Inch Plug Shim and Wedge Concrete Rock Stone Splitter Hand Tools

Work very well take up quite the pounding love that it comes with multiple sets nothing like breaking down some rocks and having something break and not have the replacement for it

with a 3/4 drill bit, 20 of these, and a hammer i have broken about 20 large boulders in my yard. they are durable and work well, and the price is good too. they are a little pricey, but they are made of good steel and well worth it, and i don't see them breaking any time soon. put a little grease on them, where the surfaces touch, and there is basically zero wear.

These feathers and wedges have been used to split several large stones. Three have broken so far. I'm using a 10lb sledge hammer to drive these home, after a 4lb hammer to set firmly. I believe the ones which have broken may have been struck off-center. The rubber rings that go around the feathers can be broken if struck/pinched by a hammer. As mentioned elsewhere, you need a 5/8" drill bit. I recommend the "DEWALT SDS Plus Bits, Rock Carbide Tip, Hammer, 5/8-Inch (DW5446)". Buy yourself at least two of them. They're good for about 8 to 10 holes before sharpening. When drilling holes for these feathers and wedges I suggest you go at least 5-inches deep. This should help the wedge from bottoming out, which could lead to breaking a wedge. Overall these are worth the money. I've bought another set. .

Most rocks I can just smash them enough and they break. This one was so solid no pun intended it was like hitting solid rock. Including drilling time it took me 15 min to split this rock and evert wedge is still perfect . I was skeptical to be honest but I'm 100% sold lol

OK, so after years of banging up my mower deck hitting the top of this boulder that was sticking out of my yard I decided no more! Picked up a $90 HF rotary hammer drill and got to work. ~25 6” holes later (20 min total) And I was ready to tap in the wedges. It was amazing how easy and how little effort you have to put behind hammering these in. I used a 3 lb sledge. A few minutes later and the sweet sound on the rock splitting apart. Would definitely buy these again…great deal for 10 wedge/feather sets! One of the rubber o-brings broke but that didn’t affect how these work. Can prob pick up a replacement for a few cents at the hardware store.

REALLY DOES WORK . DRILL A FEW LONG HOLES AND SEVERAL SHORT HOLES. THE SHORT HOLES ARE FOR STRESS RELIEF AND DIRECTIONAL

They work very well. But your description is missing the information on the O-ring. After some use they break with the rough treatment, and that’s expected. However, you don’t list the size or number of the O-ring. You should also sell them separately for just this reason. I’m having a hard time finding replacements. This is why the lower rating.

The included drill bit worked great. I drilled around 30 holes and the bit still wanted more. The feathers and wedges worked great - bands as well. Follow the instructions. Hole placement about 6" apart. Wedges in properly alignment - moderate "taps" - not pounding with sledgehammer - and damn! - the rock split. The rocks was moderately dense New England granite. A local granite shop sell a single feather and wedge (same size) for about $6-$8. This was a great deal with included drill bit.

They work, just not as easy as all the YT videos make it out to be, but I got the job done. make sure you're working area is somewhat clean, because the wedges and rubber band that holds them can go flying when they fall, and can be quite hard to find again at times.

Had 80 pieces of 12 inch thic,10 inch wide, 1100mm long granite curd stones to cut. To make garden boarders. As disc cutting would have taken days, covered my hoses and garden in cutting dust and watery slop and also cost way to much. This time tested way was invaluable, each slab needed around nine 14mm holes about 75mm deep. Clean out hole very important. Then set up with the wedge and feathers, several hammer sticks each in turn and hay presto. I've now got 135 meters of 6 X 5 inch granite edged boraders to my garden. Thought I'd break or bend at least 1 but there hardly even worn in. Did use 6 drill bits though but even at £4 each well worth the purchase.

I bought this after seeing how to do it on YouTube. I had to split a sizeable granite rock in the garden that was in the way. With a row of holes drilled at approximately 100 mm distance and the depth of the feathers, it did not take more than four or five relatively gentle taps with a small sledge hammer before the crack appeared and the stone split. I am very impressed with the method and also with the product that did exactly what I hoped for.

Fonctionne mais pas très durable se brise facilement si la roche est trop dure

I was very impressed with the overall look and feel of the shims.. Though haven't yet tested the relative merits of the steal.