Thanks: 0
Likes: 0
Needs Pictures: 0
Picture(s) thanks: 0
Results 1 to 15 of 15
Thread: Drilling M2
-
28th Sep 2008, 05:09 PM #1
Drilling M2
I'm gonna make some carving knives from M2 steel from McJings so I'll need to drill some holes in the M2 about 3mm diameter.
How shall I do it?
-
28th Sep 2008, 05:34 PM #2Most Valued Member
- Join Date
- Jun 2007
- Location
- sydney ( st marys )
- Age
- 64
- Posts
- 4,890
With a drill.
-
28th Sep 2008, 06:19 PM #3
I drilled a 1/8" (approx 3mm) hole in one of my D2 plane blades no problems.
I used a solid carbide drill bit and plenty of cutting compound, and drilled in short bursts so as not to get too hot.
I dont know how a HSS drill bit would go, maybe try on a waste piece first, just be carefull not to overheat the drillbit.
-
8th Oct 2008, 05:14 PM #4Golden Member
- Join Date
- Apr 2008
- Location
- NSW
- Posts
- 537
I have heard people say that you can drill a hole in HSS with one of those glass & tile drills that you get from the hardware store.
Although I have never tried it myself so I can't say for sure.
-
8th Oct 2008, 09:00 PM #5
I have successfully drilled 3/16" holes through hardended stainless several times using an el-cheapo carbide-tipped masonary bit and a bit of cutting fluid or WD 40 or oil.
He Who Dies With the Most Tools Wins
-
8th Oct 2008, 09:19 PM #6Member: Blue and white apron brigade
- Join Date
- Feb 2006
- Location
- Perth
- Posts
- 7,189
Most HSS is M2 or a similar alloy of a similar hardness, so HSS is not going to drill into . I have also heard about the tile drill and carbide bits but have not done it myself.
What I do instead of trying to drilling holes in hard steel if I want to add a handle is to cut small slots in it using a fine kerf cut off wheel. The handle bolts or screws fit in the slots and there are various geometrical arrangements you can use that will allow you to lock a blade into a handle with just one screw if you need to. This is much easier than drilling - see picture below which uses 3 slots and 3 screws. The little gaps left behind can be filled with a sliver of wood or an interesting piece of something like brass or even just casting resin.
-
8th Oct 2008, 09:23 PM #7
-
8th Oct 2008, 10:48 PM #8
A 3mm ARTU drill bit with a little cutting oil will go through just about anything.
Costs about $5.
https://www.bolt.com.au/product_info...ducts_id=91964
Mike.
www.ColonialPlantationShutters.com.au
Use your garage or home workshop to make Plantation Shutters as a business
-
8th Oct 2008, 11:36 PM #9
Years ago when I worked in toolrooms ,we had stellite drills for drilling hardened tool steels .
They basically were a triangular shape with rounded sides ,not much of a flute just a hollow along the sides no twist .
But you drove them at high speed until the material you were drilling turned red hot and then put pressure on the drill and it would punch straight through.
I haven't seen these drills for along time .Not sure if they are still available or even used these days.
Kev"Outside of a dog a book is man's best friend ,inside a dog it's too dark to read"
Groucho Marx
-
8th Oct 2008, 11:46 PM #10
A COBALT DRILL WILL DRILL HARDENED STILL UP to about 55/60 rockwell at slow speed with juice
-
9th Oct 2008, 12:21 AM #11Member: Blue and white apron brigade
- Join Date
- Feb 2006
- Location
- Perth
- Posts
- 7,189
M2 or HSS is typically Rc61 - 63 so cobalt drills are not going to do it either.
I just tried using a cheap chinese carbide tipped masonry 7/32 bit to drill a hole through a 3 mm thick piece of M2. Touched the carbide tip up on a grinder, so it has a fresh edge, lots of standard metal working soluble oil/water lube, high down pressure on the DP and it went through in about 20 seconds, the steel flakes off as you would expect from a hard material. Cleanish hole on one side, bit ragged on the other - there are probably more optimum cutting angles on the drill than for masonry - but hey it worked!
Cheers
-
9th Oct 2008, 12:24 AM #12
I meant hardened steel
-
9th Oct 2008, 12:41 AM #13Member: Blue and white apron brigade
- Join Date
- Feb 2006
- Location
- Perth
- Posts
- 7,189
-
9th Oct 2008, 12:47 AM #14
WE could build a stilll
-
9th Oct 2008, 12:47 AM #15Member: Blue and white apron brigade
- Join Date
- Feb 2006
- Location
- Perth
- Posts
- 7,189