Steve Crow | 02/02/2023 17:24:39 |
429 forum posts 268 photos | Can someone help me choose the right grade of piercing saw blades? I have a fair bit of sawing to do in 1/8" brass sheet (CZ120), also 2mm, 1.5mm, 1mm and 0.8mm. I am running short on blades and they are all mixed up anyway so I don't know which grade is which. I just look at the teeth and guess. I want to start from scratch and get a whole new selection suitable for the various thicknesses. I've looked on the net for guidance but not found anything useful. I'm sure that a few members of this forum have experience cutting out clock plates etc.and will be able to speak from experience. Any metric online resource would be welcome as well, I have had good experience with Super Pike blades in the past and they are quite reasonable from Cousin's but if anyone has other recommendations, please let me know. Cheers Steve
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Journeyman | 02/02/2023 17:49:20 |
1257 forum posts 264 photos | No particular advice but table of *** Piercing Saw Blade Sizes *** here John |
Steve Crow | 02/02/2023 18:15:02 |
429 forum posts 268 photos | Posted by Journeyman on 02/02/2023 17:49:20:
No particular advice but table of *** Piercing Saw Blade Sizes *** here John Thank you John, but I've seen this and many like it Most tables deal with thou, gauges and drill numbers. I know I can translate but I'd like to see a nice metric version!
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Journeyman | 02/02/2023 18:21:44 |
1257 forum posts 264 photos | This is metric from Cookson Gold *** Metric Piercing Saw Blade Sizes *** John |
JasonB | 02/02/2023 18:24:09 |
25215 forum posts 3105 photos 1 articles |
John beat me to it Edited By JasonB on 02/02/2023 18:26:37 |
Nigel Graham 2 | 02/02/2023 18:25:02 |
3293 forum posts 112 photos | If the mixture is solely of teeth pitch you may be able to sort them by using known screws as gauges. The mis-matched profiles would not matter very much as you are only using the screw as a sort of rule. A magnifying-glass may help. |
Steve Crow | 02/02/2023 18:35:16 |
429 forum posts 268 photos | Posted by Journeyman on 02/02/2023 18:21:44:
This is metric from Cookson Gold *** Metric Piercing Saw Blade Sizes *** John Thanks, I've seen this as well. Problem is, the material thickness only goes up to 1.3mm. I'm looking at up to 3.2mm. Really, I would like to here some first hand experience as all the tables seem a bit vague when it comes to thicker material.
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Dave S | 02/02/2023 18:51:45 |
433 forum posts 95 photos | Cookson do a good selection. I have a Super Pike selection set I bought from them. This one I generally use the Vallorbe 8/0 for most of my other stuff (watch dials and hands) and the platinum king ones for steel - usually 2/0 for the thicknesses I’m cutting. Dave Edited By Dave S on 02/02/2023 18:54:04 |
IanT | 02/02/2023 18:54:01 |
2147 forum posts 222 photos | Steve, I've always used the "three teeth cutting" rule of thumb where possible, whilst also trying to keep the tooth count reasonably low (to allow waste material to clear). So personally I would use a finer blade than Cooksons recommend for 1.3mm (they state a G4 - 15t/cm) but a G4 would be good for 3.2mm. I used Cousins 'house' blades for many years but the price difference between economy blades and 'brand' ones for the quantity I use (e.g. break) isn't worth scrimping on. So I use the Vallorbe 'Super Pike' these days - which cut very well. Rather than buy a blade 'selection' - to start out I'd just get a G 4 and a G 3/0 - should do for most of the work you mention. You are going to break a few blades to begin with, so don't sweat on the different blade sizes too much. Regards,
IanT PS I'm not a Watchmaker btw - just my opinion Edited By IanT on 02/02/2023 18:59:17 |
Michael Gilligan | 02/02/2023 18:55:14 |
23121 forum posts 1360 photos | This might help, Steve : **LINK** https://watchmaking.weebly.com/uploads/1/1/7/9/1179986/vallorbe_saw_frame.pdf … and I would also recommend that you have a browse around his site. In brief summary:
I presume you know all the other stuff. MichaelG. . Edit: __ Crossed with Ian’s post … but thankfully we don’t appear to disagree. Edited By Michael Gilligan on 02/02/2023 18:56:59 |
IanT | 02/02/2023 19:01:58 |
2147 forum posts 222 photos | I'm not quailfied enough to disagree with you Michael! IanT |
Michael Gilligan | 02/02/2023 19:04:16 |
23121 forum posts 1360 photos | |
JasonB | 02/02/2023 19:33:35 |
25215 forum posts 3105 photos 1 articles | If what Cookson's site says is true that grade 4 is the coarsest then you are not going to find any blades with coarser tooth spacing so will have to make do |
Michael Gilligan | 02/02/2023 19:55:21 |
23121 forum posts 1360 photos | Posted by JasonB on 02/02/2023 19:33:35:
. If what Cookson's site says is true that grade 4 is the coarsest … . For a little word … IF is quite big MichaelG. . Ref. __ This might help, Steve : **LINK** https://watchmaking.weebly.com/uploads/1/1/7/9/1179986/vallorbe_saw_frame.pdf |
Michael Gilligan | 02/02/2023 20:02:13 |
23121 forum posts 1360 photos | . PostScript Skip Tooth blades such as these should fit most piercing saws: **LINK** https://www.olsonsaw.net/shop/scroll-saw-blades/plain-end-scroll-saw-blades-5-in-6-in/skip-tooth-blades-5in/ MichaelG. |
JasonB | 02/02/2023 20:03:07 |
25215 forum posts 3105 photos 1 articles | Though on their own site they only seem to now list upto No5 |
Michael Gilligan | 02/02/2023 20:11:57 |
23121 forum posts 1360 photos | Posted by JasonB on 02/02/2023 20:03:07:
Though on their own site they only seem to now list upto No5 . I think folk call that “progress” or something MichaelG. |
Dalboy | 02/02/2023 20:22:39 |
1009 forum posts 305 photos | I use a scrollsaw mainly for wood and I use Pegas blades from Axminster tools (I find them pretty good) try checking them out to see if any are suitable for what you want to cut. There are 61 listed on their site Edited By Dalboy on 02/02/2023 20:23:09 Edited By Dalboy on 02/02/2023 20:28:11 |
IanT | 02/02/2023 20:58:07 |
2147 forum posts 222 photos | I've only ever used Cousins (and have been very happy with their service too) They list up to No 8 "cut" (11t / cm) in Vallorbe 'Super Pike'. Vallorbe "Super Pike" Saw Blades (cousinsuk.com) Regards,
IanT |
Michael Gilligan | 02/02/2023 21:43:03 |
23121 forum posts 1360 photos |
< phew ! > Thanks for that confirmation, Ian MichaelG. |
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