We had two 6" x 6" hardwood props either side of the columns and we lifted the beam enough to do the job with 6" wide fox wedges. Used for splitting mating surfaces, flanges and wedging split fasteners, this range of fox wedges are useful in the engineering industry.

If you try knocking the wheel with a hammer without knocking a fox wedge in each of the collars the collars bind on the stainless shaft and make a right mess of it (if you can get the wheel to move at all). Short grain will usually break and within the joint, you will have lost the integrity if the wood is split off from the tenon. The distance from the edge of the tenon will mostly depend on the bendability of the wood and how you decide how far from the edge will be no more than a good guesstimate. Now notice how much the outer sides of the tenon narrowed to look as though they were cut tapered when they were cut perfectly parallel to the outer edge.This will stop the wood from splitting as the wedges tighten when the tenon aspect of the joint seats fully against the mortise piece. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.

Another common use for steel wedges is to raise and position steel columns, a wedge will lift it as required and also hold it in position whilst fixing down and packing. Pare-cut down the end walls of the mortise starting partway down and pare in around about an eighth of an inch (3.

This is the reason I make sure to increase the wall at the ends of the mortise hole as a ‘retainer wall’ of resistance to prevent any splitting. They condemned two pairs of forklift truck forks a few weeks back when I was on site, they were destined for the scrap skip after a firm came in and NDT tested them and found cracks. There are advocates for using small holes at the end of the saw kerf to work as stops to stop the wood from splitting.