S&F STEAD & FAST Annular Cutter Set 6 Pcs, Depth of Cut 2”, Cutting Diameter 7/16 to 1-1/16 Inch, Weldon Shank 3/4”, HSS Mag Drill Bits Kit for Magnetic Drill Press with Pilot Pin x 2

BEEN DRILLING WORK GREAT GOOD QUALITY

They work Great .

Wish I would have had these years ago. Love them! I will be buying more sizes!!

Had to use this and the mag drill to punch through 5/16 3.5”x 3.5” steel columns 32 holes that became 16 elongated holes after connecting two holes with jigsaw. Wow I thought it would be an all day process, I got it done in about 2.5 hours on my trailer. Also these sizes are what you want for heavy steel or structural steel. Rule of thumb is drill the hole 1/16” larger if the bolt diameter is under 1”. If youre bolt diameter is larger than 1” you drill your hole 1/8” larger for clearance. These sizes included are perfect and exactly what I needed to get my project done on schedule and on budget. Life savers!!!

No complaints - used with battery & elec. mag drills to slug holes in W columns and beams for conduit penetrations & misc. attachments. these make for quick clean and accurate job. did not really need the smaller cutters; but for the cost, getting kit vs. single cutters was easy decision. they have kept good edge with correct speed and lubrication & find myself using them more in mag drill and less in drill press

I used these bits to drill a couple dozen holes in a very thick Peterbilt frame. I used 3 of the bits but mostly the 11/16". It cut great and never seemed to loose it's edge even after cutting 20+ holes. Well worth the money

Works very efficiently

Just want i needed it is visible now with new adapter 3" vs my new 4".