Slitting saw recommendation

[DavidR8]

I'm in the market for a slitting saw for a project. 1mm thickness specifically to start with. Also need to turn an arbour for it so I'd like to have the saw first so I can machine to fit.
Any decent ones that won't break the bank?

 

[mmcmdl]

 

[davidpbest]

I'm in the market for a slitting saw for a project. 1mm thickness specifically to start with. Also need to turn an arbour for it so I'd like to have the saw first so I can machine to fit.
Any decent ones that won't break the bank?

What diameter saw blade and what spindle taper?

 

[JimDawson]

I sometimes use these, I get them from Harbor Freight down here. https://www.princessauto.com/en/4-pc-mini-saw-blade-kit/product/PA0008003272

Was slitting plastic in this case, but I have also used it in metal with good results.


Another one I did for another project, a little larger. Again a blade from Harbor Freight, about US$6.

 

[davidpbest]

McMaster carries slitting saw blades in metric. Here's the 1mm - it's 2.75" diameter with 1" arbor hole: https://www.mcmaster.com/3061A72/

If you want an arbor that will fit into a 3/4" collet, here's one I use: https://www.mcmaster.com/28545A65/

 

[DavidR8]

What diameter saw blade and what spindle taper?

Straight shank is preferred. Maybe 110-120mm?


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[Jim F]

 

[DavidR8]

Thanks for those @JimF


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[westerner]

Slitting saw arbor

I look at these things and yikes they scare me. A supper sharp unguarded saw blade spinning at who knows what rpm. I haven't figured out what I would ever do with one. Like any machine tool, one learns real quick to keep body parts away from cutting tools. Even when they aren't running. Think...

www.hobby-machinist.com

I did the arbors like Joe Pie showed me. Used them just last week.
The best tip I have got for slitting saws is this-

Take the full depth of cut in your first and only pass. Adjust your speed and feed to suit.

 

[mksj]

I think you may benefit from using a standard size arbor, lots of blades with a 1" hole, but not too difficult to also make one smaller. Below is a link to how Jim made his, there are a number of other posts on how others have done them. One thing to be careful is that when cutting the blade can twist and the screw can self tighten to the point that it can't be removed w/o drilling it out. I prefer to use an Allen head screw that is countersunk in the head with a wave washer which decreases this from happening. I have included a design I made and drawn up by a past HM member.

Another order of operations question... re: saw arbor

Since I'm a proud owner of a Niagara slitting saw, thought I'd make an arbor for it. Found a nice plan for a saw arbor @ saw arbor plan There are two pieces, the body itself and a close fitting cap. How do I ensure the two pieces are concentric with each other? If machined them together...

www.hobby-machinist.com

Slitting Saw Arbors

I purchased a Sierra American 5/8" slitting saw arbor with 3/4" shank to use in my Tormach 3/4 Collet. Seems reasonably well made except for the arbor size for the blade. Here in Australia its no longer easy to purchase Imperial 5/8 bore slitting saws. All the imported saws while they may be...

www.hobby-machinist.com

As far as 1 mm slitting saws, I think other then the one that David pointed too at McMaster's it will be very uncommon to find a metric saw with an inch bore. You can look at a close approximation in inches such as 0.039" instead of 0.03937" (1mm). When cutting use lubricant, try to take a deep cut and try to keep the RPM on the lower end with HSS otherwise yo will burn up the blade.

(1)One Slitting Slotting Saw Blade 0.039" x 2-3/4" HSS Machinist Cutting Tool | eBay

Slitting Saw Blade. Still sharp. All are USA-made HSS blade.

www.ebay.com