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8th December 2017, 09:11 PM #16Senior Member
- Join Date
- May 2009
- Location
- Peoples Republic of Bryn
- Posts
- 393
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8th December 2017 09:11 PM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Location
- Advertising world
- Posts
- Many
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11th December 2017, 12:25 AM #17New Member
- Join Date
- Jun 2009
- Location
- West Aust
- Posts
- 4
Purchased some 5% cobalt drills from China (5Pcs HSS-CO High Speed Steel M35 Cobalt 4/5/6/8/10mm Drill Bit Tool Set AU $7.99)https://i.ebayimg.com/images/i/38184...0/s-l140/p.jpg
They are cheap and fantastic.
I did a torture test with the 10mm - Drilled some hardened steel - tip went blue and damaged - re-sharpened it about 3mm back.
It re-sharpened to razor sharp and tough again. I will be using these in future if I can get them.
I saw a 1/16 to 1/2" cobalt set on the counter in a company I visited recently for $70 Looked similar quality.
Also
I am buying these (Carbide Tip Metal Cutter Stainless Steel Drill Bit Hole Saw Holesaw 15-55mm)
https://i.ebayimg.com/images/i/40132...0/s-l140/p.jpg
Carbide tipped holesaw/broaches They are also tough and great value.
Used the 30mm ($7) one for boring holes in 6mm steel plate and a 20mm ($5) one for boring cleanly through a brick.
regards moorebrm
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26th December 2017, 05:13 PM #18Intermediate Member
- Join Date
- Oct 2005
- Location
- Sydney
- Posts
- 49
Moorebrm,
Is there any chance you could provide a link to the Drill Bit Tool Set and the Carbide Tip Metal Cutter Stainless Steel Drill Bit Hole Saw Holesaw?
Thanks.
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26th December 2017, 05:31 PM #19Woodworking mechanic
- Join Date
- Jan 2014
- Location
- Sydney Upper North Shore
- Posts
- 4,470
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26th December 2017, 05:53 PM #20Intermediate Member
- Join Date
- Oct 2005
- Location
- Sydney
- Posts
- 49
You're a champ!
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27th December 2017, 02:56 AM #21New Member
- Join Date
- Jun 2009
- Location
- West Aust
- Posts
- 4
Cobalt Drills purchased
https://www.ebay.com.au/itm/Hot-5Pcs...gAAOSwMVdYIZqv
regards
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27th December 2017, 06:22 AM #22Intermediate Member
- Join Date
- Oct 2005
- Location
- Sydney
- Posts
- 49
Thank you!
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30th December 2017, 10:05 PM #23Senior Member
- Join Date
- Nov 2012
- Location
- Mid North Coast NSW
- Posts
- 106
I purchased the Sutton metric and imperial sets (around$70 ea) from Bunnings 18 months ago.
Not happy with them. Small drills blunted quickly, many drills slightly bent, sharpened offset and drill inaccurate hole sizes.
P&N were the bees knees once but I don't know where to get quality precision drills from now.
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31st December 2017, 07:55 AM #24
Not exactly the geometry of the Viper bit but very close. I think with experimentation that it could be replicated on the DBS22 jig, but why bother when the Tormek DBS22 instructions / method gives a similar result that is equally as good as the Viper geometry imo.
Easiest way to explain - check out the Tormek clip - https://www.tormek.com/uk/en/grindin...ng-attachment/Mobyturns
In An Instant Your Life CanChange Forever
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