A dado is cut across, or perpendicular to, the grain and is thus differentiated from a groove which is cut with, or parallel to the grain. The difference between the two is that a dado is milled across grain, while a groove is milled with the grain.Ī dado (US and Canada), housing (UK) or trench (Europe) is a slot or trench cut into the surface of a piece of machinable material, usually wood. Because of their similarity, dados and grooves are often referred to as 'slots'. Rabbets are somewhat different – we'll look at them shortly. Likewise, what is the difference between a rabbet and a dado? Forrest are making a (quite expensive) finger joint 8 blade with a 30 mm bore. Can anybody measure the length of the arbor. As the dado set spins, the two outside blades cut the dado walls and the chippers remove the waste material in between and smooth the bottom of the dado. Since the 7492 does not allow a dado blade I was wondering if I could use a finger joint blade on it. Likewise, what is a dado blade used for? A dado set or dado blade is a type of circular saw blade, usually used with a table saw or radial arm saw, which is used to cut dadoes or grooves in woodworking. In re-reading the table saw manuel last night, I noticed that it says to use a 6 dado blade. I need to cut some 1/2 inch finger joints on 1/2 inch oak stock. Because of this, all UK or european table saws are deliberatley fitted with short arbors to prevent their use. My dado blade is an 8 Harbour Freight Liftime stacked dado blade, that has 4500rpm maximum speed written on the blade. In this manner, why are dado blades illegal?Īs already mentioned dado blades are illegal on UK (EU) table saws because in order to use them the guard and riving knife have to be removed, and is therefore unsafe. A router can be used to cut dadoes, but a circular saw can also be just as effective. Here, based on research and reviews, we have tried to provide you with the list of some of the highly recommended dado blades so that you may pick up the one that’s best for you and your work. These are cut using a dado blade on a table saw which removes the wood to create the channel. A dado is a square-walled, flat-bottom channel cut across the grain of wood, that another piece of wood will fit into snugly.