To sum up, choose the right drill press, or if you are a very accurate person, a hand drill, the right drill bit type (you can look at the selection by clicking on the link ), lubricate your drill bit, put the rod …

This is especially valuable when drilling a curved piece of metal, such as through a round metal rod or a section of tubing. We offer tight tolerance, custom width, length, and more to meet your customer's needs. Not perfect, but it didn’t have any problem drilling through the 1/4″ thick hardened steel chisel I used for the test: The second, unfinished hole is from the SDS bit.


A cutting die is the sister tool of a tap. I stopped after it was clear that it wasn’t going to finish and I believe I could have done a better job of sharpening that one. I need to accurately drill multiple holes in steel pipe (1.25-2" diameter, 65-100 mil wall thickness, about 10ft long). I do first a flat shallow groove with the grinder in the desired site. There are also other steps to drilling this material that will make the process easier. As stainless steel is a hard material, you must use a very strong, sharp bits to drill it.

One way would be to drill a hole the size of your rod (13mm) though a block of wood that is 2x2x6 inches long, , then saw the block into two pieces that are still 6 inches long. This may work for you. This is also true for three round shapes: round bar, drill rod, and shafting. You want a rod that goes into the chuck which has a dead to nuts square end on it so you can lower it into the V and pull the V block to the center line of the drill that will replace the rod. To buy the best drill bits for stainless steel, it is essential to look for the features that contribute to a longer life and a higher performance. This protects other lengths from scratching, facilitates set-ups and ensures safety in handling. The spot where the rod hits the tool will become red hot pretty quickly and anneal it (maybe). The lower point of a V block is easier to be found than the higher point of a rod, and they are on the same line.

It is also a good technique if you need to put a centered point on the end of a rod: chuck it in the drill and spin it against a bench grinder. The trick with stainless steel is using very slow speed and low pressure. Stainless steel, also known as “inox steel,” is an alloy of steel with a minimum of around 10.5% chromium, based on its mass.It is known for its corrosion-resistance, high heat resistance, and high ductility. I need to drill a half-dozen or so evenly-spaced aligned pairs of holes all the way through the pipe. Cutting threads on a steel rod requires a die set. Stainless steel is very difficult to drill because it is so hard. The Difference Between Round Bar, Drill Rod and Shafting.

If the centering of the hole is important (not always it is so) you must be careful seeing the drill …

Water-hard prone to distortion and oil-hard much less so. Using high-speed drill bits or better is mandatory. You’ll get a nice sharp well-centered point. At the 3 inch mark drill through either one or two of the two pieces a hole the is the size you want your rod holes to be.
You can also use a punch to dimple wood, and even ceramic tile if you are careful. Method #3.

For that reason, you won’t have to worry about finding a specialty bit to get the job done, as you will almost always be using a twist style bit anyway. Run the mill at a fairly high speed (1500 or so) and bear down on the feed. How to Choose a Drill Bit for Hardened Steel. Center the V block, then put the rod into it. These steel drill bits are ideal for drilling through tough metals, including heavy-duty abrasive alloy metal drilling on hardened metals and stainless steel. I need to accurately drill multiple holes in steel pipe (1.25-2" diameter, 65-100 mil wall thickness, about 10ft long).

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