Hello! Our Hole Dozer General Purpose Bi-Metal Hole Saw Set (9-Piece) (49-22-4009) just requires a minimum chuck size of 3/8".
Yes, in a sense. 2.375" is the depth of the cutter "cup", which will limit the thickness material you can saw at a time. You could cut deeper, but you'd have to remove the "plug" in the cutter or the hole before continuing. For example, if you want to saw more than 2.375" into a slab of wood, saw to the depth of the cutter, remove the cutter, chisel out the plug in the slab, then continue cutting.
Yes, it can be used without the pilot bit. The arbor chucks, not the bit. I strongly recommend using a drill press and secured material. It can be quite aggressive and perhaps uncontrollable if used free-hand.
Hello! Our Hole Dozer General Purpose Bi-Metal Hole Saw Set is intended for wood, plastic, aluminum, and metal applications. You may want to check out our SDS PLUS Core Bits, which are ideal for drilling large holes in brick, block, and concrete with SDS Plus rotary hammers
Hello! Our Hole Dozer General Purpose Bi-Metal Hole Saw Set (49-22-4009) includes: (1) 1 in. bi-metal hole saw, (1) 1-1/4 in. bi-metal hole saw, (1) 1-1-2 in. Hole Dozer bi-metal hole saw, (1) 2 in. bi-metal hole saw, (1) 2-1/2 in. Hole Dozer bi-metal hole saw, (1) 3/8 in. hex shank arbor, (2) 3-1/2 in. pilot bit, (1) arbor spacer, (1) arbor adapter, (1) 1/8 in. hex key.
Hi Alfred! We suggest checking out our Hole Dozer with Carbide Teeth, which has the longest life in stainless steel.
I don't know what set Milwaukee is talking about, but I just got mine on 3/25/2020 and it is 3/4",7/8",1",1 1/8", 1 1/4", the (4) smaller are BI-METAL, the 1 1/4" says its carbide but does not have welded teeth, there is no extra pilot as shown on the picture. This is the third time I've been shorted on the pilot bits, although they did not list on the contents, just showed pic.
This is not a dowel pin system of attachment.
Yes, but it's not the best method. A carbide or diamond grit type would be best. The Hole Dozer works well if you don't allow it to overheat, and keep it lubricated and cooled with a little water. Go slow with medium speed and light pressure and it works very well. I also highly recommend using a cobalt bit for the pilot hole. Again, don't apply too much pressure or overheat it.