3 Pieces 5/8 Inch Wood Carving Chain Disc 4 Inch 22 Teeth Saw Blade Grinder Wood Carving Disc for 4 Inch/ 4-1/2 Inch Angle Grinder Grinding Shaping Attachment Circular Chainsaw Wheel

The center bore is actually 17 mm, 21/64, not 5/8 (15.875 mm) - they do not fit on my 4 1/2 Harbor Freight angle grinder with a 5/8 arbor. I wouldnt use them even if they fit - theyre made from two metal wheels with the chain guides in between the wheels, and a single cotter-pin type piece of spring wire. The blue plastic piece shown in the middle 9circled in red in the photo) is the only thing that keep the two wheel halves from separating - if you handle the disk before putting it on a grinder the chain slips out and the disk must be disassembled to put it back together. Lastly, in the upper right of the photo I circled two areas where it appears a blue part on the chain locks it into two of the slotted muffle holes, but these chains dont actually have them - theres nothing holding the chain to the disks but friction - dangerous! Returning for refund. Edit: After scouring Amazon for other makes of these chainsaw wheels, I found one that showed two small bolts going thru two of the four slotted holes, but one reviewer complained that they became loose and flew off the grinder wheel, dangerous. Another vendor specifically said in the description and instructions (this model comes with no instructions) that you must remove the wire pins holding the two wheel halves together before using the saw blade - this seller does not provide that important warning. I decided to buy a package that contained several types of wood grinding attachments, including one of these chainsaw wheels w/extra chain - when I get it I will install four small bolts using locking nuts to hold that thing together - if I lack the correct size locking nuts Ill glue them on using something stronger than Loctite - probably a small dab of E600 glue - that stuff is awesome, can take a lot of sheer stress, unlike crazy glue.

Removes wood fast

Great value

I used it to trim back some rather large braches at the bottom of a few bushes. Chainsaw didnt work so well.