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Post by wrightwoodwork on Mar 12, 2014 14:04:35 GMT -5
The CMT 312 series are the dowel drills for Mafell. They come in 5mm(£15.45), 6mm (£15.75), 8mm(£16.56), 10mm (£18.15), 12mm (£20.97) 14mm (£27.60) & 16mm(£29.76) all plus vat.Orders over £50 delivery f.o.c. These are what I was quoted. I have been informed they are in stock now. As the guy did not want to be mentioned on the forum please send pm me for details. Taz Ordered a couple of the 16mm bits yesterday and where in the post when I got home today paid £31+ vat |
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taz
Junior Member
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Post by taz on Mar 12, 2014 14:29:23 GMT -5
Is that £31+VAT for two cutters or each? Looks like prices have changed.
Taz
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Post by wrightwoodwork on Mar 12, 2014 14:55:45 GMT -5
Each ,would be great for the pair. Very useful to know. Had a quick try of them my mafell 16mm had got blunt and when I tried to sharpen myself the geometry went to pot
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Post by garch on Mar 12, 2014 18:11:43 GMT -5
I have two 16mm bits on the way, should be here Friday along with the template extension. The bits were $97.60 each, ouch!
Didn't find any CMT's in such a large diameter.
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Post by GhostFist on Mar 12, 2014 18:16:43 GMT -5
WHOA!
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Post by GhostFist on Mar 12, 2014 18:17:29 GMT -5
I mean, 97$ each? WHOA!!!!!
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Post by MrToolJunkie on Mar 12, 2014 18:54:28 GMT -5
That is a pretty penny. Do you think that the 16mm size would work for exterior door construction? What about interior doors? Thanks
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Post by garch on Mar 12, 2014 19:59:06 GMT -5
I mean, 97$ each? WHOA!!!!! Yes sir, each. I had to verify when ordering with timberwolf just to be sure they quoted me correctly. All of their drills are sold individually. I see the 16mm drills are now $101.50 each due to the recent price increase. Might have to fashion a locked display case to show them off  If only I had a few bucks left to buy materials for said case! |
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Post by garch on Mar 12, 2014 20:43:51 GMT -5
That is a pretty penny. Do you think that the 16mm size would work for exterior door construction? What about interior doors? Thanks I believe wrightwoodwork did just that, made exterior doors. How are they holding up wrightwoodwork? I feel that depending on your construction techniques and particular application the 16mm x 75mm dowels may work. But for example, if you're profiling your stiles and rails on a shaper and the groove depth on the sticking is around 1/2 inch your dowel will only penetrate into the stile approximately 1" more or less. In this instance I would not feel comfortable in an exterior application. However for interior doors in a climate controlled environment that may be fine if an adequate amount of dowels can be placed in each joint. So it really depends on the specific application and joint design of your project. I'm still experimenting myself. |
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Post by MrToolJunkie on Mar 12, 2014 22:33:38 GMT -5
Thanks, Garch. I have read that 3 inches/80mm is ideal for exterior -- maybe 75mm would be OK, but I see that the DD40 cannot plunge that deep...maybe interior would be OK, though.
Woodwright -- if you could weigh in that would be great. Thanks!
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taz
Junior Member
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Post by taz on Mar 13, 2014 5:09:11 GMT -5
Thanks, Garch. I have read that 3 inches/80mm is ideal for exterior -- maybe 75mm would be OK, but I see that the DD40 cannot plunge that deep...maybe interior would be OK, though. Woodwright -- if you could weigh in that would be great. Thanks! You could drill the holes with the dd40 then extend the holes with a regular drill with the same size drill bit. This would allow longer dowels to be used. |
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Post by jalvis on Mar 13, 2014 10:17:03 GMT -5
I have two 16mm bits on the way, should be here Friday along with the template extension. The bits were $97.60 each, ouch! Didn't find any CMT's in such a large diameter. Thats why I was saying to get the CMT and have a machinist resize from 10mm to 8mm shank. If you get the CMT its only $29 each for a 16mm. My machinist can turn a shank in about 2-3 minutes. I just gave him 12 bits to turn and it will cost me around $50. |
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Post by garch on Mar 13, 2014 10:41:16 GMT -5
I have two 16mm bits on the way, should be here Friday along with the template extension. The bits were $97.60 each, ouch! Didn't find any CMT's in such a large diameter. Thats why I was saying to get the CMT and have a machinist resize from 10mm to 8mm shank. If you get the CMT its only $29 each for a 16mm. My machinist can turn a shank in about 2-3 minutes. I just gave him 12 bits to turn and it will cost me around $50. Yep, good idea for the larger diameter bits. May have to do just that in the future. These bits were on back order from a while ago when I purchased my dd40p, and had not done much research at the time regarding bits. From 3mm thru 12mm I'd just purchase the 306 series of CMT drills with the 8mm shank, the oal of those is minimally shorter and would not hinder any of my applications. |
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sgtrjp
Junior Member
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Post by sgtrjp on Mar 13, 2014 12:25:56 GMT -5
The problem with both the 306 and 308 series bits is that the cutting length is only 30mm. I'm going to look into the 312 series, but I'm probably going to try the 307 and cut 10mm from the shank.
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sgtrjp
Junior Member
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Post by sgtrjp on Mar 13, 2014 12:34:06 GMT -5
Well, I guess it's more like 9.5mm to cut off since the overall length on those is 67mm But,I figure it's worth a shot to try it myself. Worst case, I could take it to a machinist(rather than loose an eye).
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If only I had a few bucks left to buy materials for said case!