Woodworking Square Hole Mortise Drill Bit, 5pcs HSS Mortising Chisel Bits Mortiser Press Attachments Tool Square Drill Bits Countersink Bits for MDF, Particleboard Sizes 1/4, 5/16, 7/16, 1/2, 5/8IN
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Availability:
In Stock.
Arrives
Sunday, Feb 8
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Features
- Material: Woodworking square hole drill bits are made of high-speed steel, Heat treatment process, Sharp and wear-resistant bladed and not easy to break, square drill bit with high hardness ,long using life
- High efficiency: The U-shaped long chip flute design facilitates removal of sawdust and improves drilling efficiency, Combination of long drill core and square chisel easy to drill square hole, saving labor and effort , improve work efficiency.
- Multi Size available: Come with total 5pcs different size square drill bits, 1/4"(6.4mm), 5/16"(8mm), 7/16"(9.5mm), 1/2"(12.7mm), 5/8"(mm). Can meet most your needs.
- Widely using occasion: These woodworking square hole drill bits are suitable for mortise and square hole machines (PLEASE ATTENTION: the square hole drill bits are suitable for machine and bench drill only, but not hand drill. Please make sure the drill bit and wood board are at a 90-degree angle.), and it widely used for construction, installation, renovation, decoration industry. Also, these drill bits can work on solid wood, particleboard, MDF, etc.
- Warranty: Our store provide quality service to customers , if you have any quality problems,you can contact us at any time, we will try our best to solve your problems.
Material: High Speed Steel
Finish Type: Polished
Shank Type: Round Shank
Cutting Angle String: 90 Degrees
Brand: McopKrmo
Product Dimensions : 8.3 x 0.75 x 0.75 inches; 3.53 Ounces
Item model number : SCDOP1F
Date First Available : March 25, 2022
Manufacturer : McopKrmo
Country of Origin : China
Best Sellers Rank: #135,046 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #155 in Countersink Drill Bits
#155 in Countersink Drill Bits:
Customer Reviews: 4.6 4.6 out of 5 stars 28 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Feb 8
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I needed to square a hole in a replacement manure fork handle. I was originally looking for a corner chisel, which was not easy to find, and once found; they are expensive! Decided on this/these. Stuffed a drill bit in reverse into the 12.7mm/ 1/2" sq chisel for alignment and used rubber-bands to hold a line level across the top flat to keep me on track, using a strap of rubber between the driven end collar and vise grips to adjust . Slow go w/ a dead-blow mallet, needing to extract the chisel frequently to clear the shavings packed into the alignment drill until I was significantly deep.. But patience prevailed and it created the hole I needed. A considerable volume batch of 30 minute epoxy mixed w/ saw dust to load the hole and paint the fork end. Let it cure a couple of days. Good to go.... Solid.! Total cost_, I could have bought a new fork. BUT I'd then re-experience the problems I have had with this original one, (fork eventually loosened in the handle, which I extracted and welded a stud onto to lengthen, then epoxied back together w/ the original handle, which a couple of years later rotted w/in the upper region of the metal sleeve). This now will LAST, likely past my life time. Plus I've occasionally wished I had a means of squaring holes; which I now have the tools to do.
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Reviewed in the United States on June 19, 2023 by noah
I made an adapter to use them on my tabletop drill press. They work fine for small jobs. If you have a mortising machine or do commercial work you might want a higher quality set.
Reviewed in the United States on September 13, 2023 by Whitey Brown
Purchased these to install square wrought iron stair spindles. Couldn’t use a drill press on the steps so I drilled the hole with these bits and then used the square cutter like a chisel, cut clean and worked perfectly
Reviewed in the United States on July 20, 2023 by DT
These are a great set if you're not looking for production grade tools. They cut well in softer wood but will overheat if you're not careful in the hardest of wood. Very economical for most home woodworkers, as long as you understand their limitations they will work well.
Reviewed in the United States on April 18, 2023 by HO
This makes countersinking in wood super easy. Set the depth and drill. That easy. The bits are sharp and the countersink tool combined with it made is much easier than using two different tools. Definitely 5 stars!!!
Reviewed in the United States on June 24, 2022 by Raymond Rhodes
Well made and super sharp mortise chisel housing. They work great! And for the money............can't go wrong.
Reviewed in the United States on September 23, 2022 by Gary C
I am new to DIY projects and saw this cool square hole driller. I thought this would be awesome to use for the first project I am doing. Well, it hurts to be a newbie. I didn’t know that you can’t use this for hand tools that I already have. It is on me, my fault for not reading through the description. However, these tools look very solid and sturdy. I would love to be able to use these but I will have to save up for the right machine. I stil rated it 4 stars but honestly, the 1 star deduction was more because I can’t use them for now so it is very hard to judge how well it will stand up to the usage and if the sharpness will last. Will it break easily if the wood is harder than anticipated or if pushed to drill a little harder? I will come back to these comments once I actually start using them.
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Reviewed in the United States on July 15, 2022 by claire
Frankly, I thought these would somehow work in a standard drill press. I've used a version of these years ago, but I never recalled what the machine was in the shop where it existed. Bottom line, you either need a mortising press, or a drill press with a specific attachment. I have neither, so I can't speak to how well these work, but I've used my fair share of drill bits and these look and feel pretty well made, and quite sharp, especially the mortising chisels. The paintwork in the bits isn't great, but at this price, who cares. I suspect if you have the machine to use these, they'd do a respectable job.
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Reviewed in the United States on July 7, 2022 by Damian