Review on Fuller C10M Number Complete Countersink by Draven Louton

WLFuller loves to confuse. They have an online catalogue, but C10M isn't there. It appears to be the same countersink/drill as "C10". The cone drill has a diameter of 13/64" and the outer diameter of the countersink is 7/16". The reason these numbers are important is because "#10 screw" defines the diameter of the screw, but does not determine the size of the countersink or drill bit. WLFuller has several recommended options for Prop #10. The head hole can be 7/16 or 1/2 and the drill bit diameter can be 13/64' or 3/16'. The recommended countersink number for #10 screws is C102. Now use the information in Revain ("C10M number 10") which doesn't really tell you much and doesn't match the WLFuller catalogue, and use that information alone to determine which diameter pair you're getting. If you plan to use a plug cutter to cover the screw holes, you need to know whether you should order a 7/16" or a 1/2" cutter. In this case it's 7/16". I was foolish to think that this would be the "recommended option" with a 1/2" countersink and ended up ordering the wrong cork cutter. This is not the seller's fault (or not entirely the seller's). WLFuller doesn't know how to consistently label and package its tools to make them clear and easy for the end user. Each distributor has to do this himself and a lot of information is lost in the process. This seller sells them in packages that say "Shopping Aids", lists "WLFuller #10 Countersink" and prints a non-WLFuller part number. Woodcraft sells WLFuller products in plain plastic bags, again with little to no description. Figuring out what you're getting can be a chore, if not a mystery. In terms of performance, they are okay. Somewhere I saw a manufacturer's comment that a stainless steel option is recommended for hardwoods. This seems to be recommended for soft woods like pine and fir. I used it on maple, it struggled but it worked. I was having a hard time getting the countersink to stay on the drill bit. I couldn't seem to tighten the screws enough to hold them, although it seemed like I might break either the tiny screws or the allen wrench if I pushed harder. The cut looks clean and accurate in diameter. A nice feature is the included locking collar. You need a locking ring to limit the depth of cut. The downside is that the locking collar is relatively thick, so a binary system is required - you either plug it in or unplug it, the range of adjustment is very small. Apparently the idea isn't so much to control the depth of the hole as to allow the user to go from cutting deep holes for wooden dowels to making a small recess for countersinking screw heads. It should also be noted that the options are fairly limited at 7/16" diameter and above. For example, the popular (and inexpensive) Dewalt set with the smaller diameter. I have a set of 3 dewalt countersinks and can't say they are worse. , although 3 of these cost less than a WLFuller countersink. To sum it up, it's a bit dated, especially when it comes to marking and packaging, but it works better with softwood than hardwood. It's a good thing that WLFuller offers them in the diameters required for larger screws. Good thing it's not cheap junk, but I couldn't immediately tell the difference with big cardboard brands that would guarantee a much higher price. I like being able to order the right size easily, and I'd like the m to come in nice containers, like the little boxes Feud uses for their cutters.