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Your cart is empty.Product Description
Annular cutter sizes
- Cutting Diameter: 7/16"
- Cutting Depth:2''
- Shank Diameter: 3/4"
- Shank Style: Weldon Flat
- Number of Flats: 2
- Accessories:1 pilot pin(4.74*102mm)
Annular cutter
Application
1.The cutting speed:VC=20-25m/min
2.The reasonable rotate feed amount shall be fn=0.08-0.13mm/r.The reasonable feed rate shall be vf=36-60mm/min. "Weldon shank" annular cutters have 2 flats and fix in the chuck by tightening grub screws in the two flat areas.
3. Insert the ejector pin inside the annular cutter.Fill the coolant tank with oil lubrication,never use the machine without lubricant.
Packaging
- A transparent plastic case
Bill or Sparkey
Reviewed in the United States on April 2, 2024
If you want to drill (machine) clean and accurate holes into metal {+0.004", -0.000" in steel}, the annular cutters are the way to go. Anything over 3/8 of an inch starts getting difficult to bore, especially over 1/2".Twist bits have their purpose and their limitations too. When I was a young pup, I work in maintenance as an apprentice mill wright. I had to drill countless holes in iron for a truck scale. Holes up 1-1/8" with twist bits.Holes of that size were drilled in 3-4 stages, tedious process. Annular cutters @ any size will cut in one blow. A 1-1/8" diameter hole through 1" iron is about a 2 min approx. I own a magnetic drill that has the 3/4 inch Weldon Chuck on it, that is required for this cutter. I converted my production drill press to handle all my annular cutters. You need to have cutting fluid while boring. My press is 3/4 HP and variable speed on demand. Cutting speeds range from 600-1000rpm for 1/2" to 270-460rpm for 1-1/4". Personally, 1/2 HP is probably the smallest motor I would recommend. There is a lot of TORQUE involve while cutting. The item you are drilling "MUST BE" anchor to the drill press table!!! Otherwise, serious injury or more could happen.I am a serious DIY type person. Annular cutting IS NOT cheap. Once your friends {like me} found out that I can punch holes into 1-1/2" iron [2" cutter], I got more work than I want too. Now, these cutters ARE NOT sharpen easily. I have to send then off to a shop that can do it. They charge $30-35 per cutter. For the price Igot these @, I just by new ones. My larger ones are costly, resharpen it about half of a new one.I have sizes from 7/16" to 1-3/8"Final Note: If you keep the cutters WELL lubricated and DO NOT over force them, you will get many of cuts.
E
Reviewed in the United States on September 27, 2022
Held up good, drilled many holes in 1'' plate
4RunnerFan
Reviewed in the United States on August 30, 2022
Used this to cut through the flange on some w4 13lb I beam. Cut it like it was butter. Will buy again if I need it
jim francis
Reviewed in the United States on August 9, 2021
Sharpness and continued use with no problems .definitely recommend.
William Constant
Reviewed in the United States on January 28, 2021
Borrowed a magnetic drill to drill some holes in a truck frame. Only drilled a dozen holes but kept lubed with used oil and couldn't tell a difference from first hole to last. Worked great.
AlexB
Reviewed in the United States on December 2, 2020
Used to cut some holes in 3/8 thick steel. Worked well throgh the 16 holes we needed to drill, still seems quite sharp.
Taylor T.
Reviewed in the United States on November 24, 2020
Works likebit should.
Texas Fireman
Reviewed in the United States on October 30, 2020
Dull after 1 hole. Absolute junk. Bought a replacement bit in a Evolution brand, and finished 50 holes with it.
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