If you don't, do without unless clearing graveyards is your life's work. It is a cumbersome tool to use, so don't buy one. If you have brought a chain saw file in the chain saw kit, that will suffice. If you want the best, get the Train Engineer kind with the large canvas cuffs that cover your wrists - particularly if you have to do war with briars. Wear Jeans trousers or other very tough material trousers and bring a Jean jacket or similar tough jacket - the briars will shred anything less.
Boots are the preferred foot wear for an afternoon soiree at the overgrown cemetery.
It is not the easiest stuff to find, but its worth the search. Most repellents will keep chiggers and ticks away - but a thorough search and shower after your endeavors is a good idea. Except for Copperheads, Moccasins, Rattle Snakes, and Coral Snakes, which are of course serious dangers, most other snakes will cause no harm and are as anxious about you as you are about them and will quickly leave the area. Further, their bites are essentially harmless - far less problem than bee stings, especially if you step on an underground nest of yellow jackets. Take a can of Hornet Jet Spray - this kills 'em almost instantly.