treesner Posted October 18, 2016 Report Share Posted October 18, 2016 wondering what counter sink bits or techniques you've had success with. I have the LV tapered bit+counter sink that works well but for larger holes that I need to drill with a normal bit I can't get a good counter sink. With hand drill and drill press it seems to not give a clean counter skink but rather chatters around. Any suggestions? this is similar to what i have currently tried but get chatter, maybe you have to drill the hole with this first then drill the normal hole? https://www.amazon.com/Vermont-American-16638-Countersink-4-Inch/dp/B00062BEMA/ref=sr_1_33?ie=UTF8&qid=1476806430&sr=8-33&keywords=countersink this is what I use for screws that seems to work well: http://www.leevalley.com/en/wood/page.aspx?p=40127&cat=1,180,42240,42281&ap=1 Quote Link to comment Share on other sites More sharing options...
rodger. Posted October 18, 2016 Report Share Posted October 18, 2016 I use this one, and its quite good http://www.leevalley.com/en/wood/page.aspx?p=71860&cat=1,180,42240,42281,71860 Quote Link to comment Share on other sites More sharing options...
treesner Posted October 18, 2016 Author Report Share Posted October 18, 2016 maybe this is what I need.. its at least marked toward my needs "chatterless countersink" http://www.leevalley.com/en/wood/page.aspx?p=41012&cat=1,180,42240,42281&ap=1 Quote Link to comment Share on other sites More sharing options...
JosephThomas Posted October 18, 2016 Report Share Posted October 18, 2016 Marc discussed this in one of his recent live videos: http://www.thewoodwhisperer.com/tww_live/friday-live-9216-powermatic-cnc-countersink-bits-grandfather-clock-quartersawn-white-oak/ See down in the description he says "8:19 – Countersink Bits. Amana bit shown in the video." 1 Quote Link to comment Share on other sites More sharing options...
treesner Posted October 18, 2016 Author Report Share Posted October 18, 2016 anyone tried this type of counter sink with the large hole in it? https://www.amazon.com/KEO-53511-Single-End-Countersink-Uncoated/dp/B00947BOYQ/ref=sr_1_34?ie=UTF8&qid=1476807536&sr=8-34&keywords=countersink Quote Link to comment Share on other sites More sharing options...
drzaius Posted October 18, 2016 Report Share Posted October 18, 2016 14 minutes ago, treesner said: anyone tried this type of counter sink with the large hole in it? https://www.amazon.com/KEO-53511-Single-End-Countersink-Uncoated/dp/B00947BOYQ/ref=sr_1_34?ie=UTF8&qid=1476807536&sr=8-34&keywords=countersink I have a couple of those & they work fairly well. But occasionally they will chatter a little. They seem to loose their edge easily with very hard woods. Quote Link to comment Share on other sites More sharing options...
treesner Posted October 18, 2016 Author Report Share Posted October 18, 2016 found this technique, drilling in reverse.. i've tried slow, fast, by hand so i'll see if this works found some tips in a google search http://woodworking.stackexchange.com/questions/2986/why-is-my-countersink-bit-making-hexagonal-holes * Definitely sharpen the bit if you can manage it as a first step to solving the problem. Sharpening mine did improve performance, although it wasn't an absolute fix. In use the technique that seemed to help the most for me was to run the drill fast and use light pressure, with a very firm hold on the drill. This worked far more reliably than using low speed and firm pressure. Another tip I read just the other day that you might like to try: countersink before you drill the clearance hole. * Use a sharper countersink, which should cut rather than catch Use a countersink with a pilot bit, which will make sure the countersink doesn't wobble once it engages the workpiece. Use a higher speed, which again should cut rather than catch. Clamp the work piece rather than hand holding. Go very slowly, particularly when first engaging the work piece. Don't rely on the bit to self center - make sure you are drilling in the exact center of the hole before the bit engages the wood. Quote Link to comment Share on other sites More sharing options...
drzaius Posted October 18, 2016 Report Share Posted October 18, 2016 That video tip is fine if you don't care what it looks like. The angle on a drill bit is all wrong for a counter sink Quote Link to comment Share on other sites More sharing options...
shaneymack Posted October 18, 2016 Report Share Posted October 18, 2016 anyone tried this type of counter sink with the large hole in it? https://www.amazon.com/KEO-53511-Single-End-Countersink-Uncoated/dp/B00947BOYQ/ref=sr_1_34?ie=UTF8&qid=1476807536&sr=8-34&keywords=countersink I use this one, made by Festool. Typical Festool, great quality Sent from my SM-N910W8 using Tapatalk Quote Link to comment Share on other sites More sharing options...
sjeff70 Posted October 18, 2016 Report Share Posted October 18, 2016 Some of these bits are made of carbide and some are made of cobalt. Quote Link to comment Share on other sites More sharing options...
JosephThomas Posted October 18, 2016 Report Share Posted October 18, 2016 I use this one, made by Festool. Typical Festool, great quality Sent from my SM-N910W8 using Tapatalk I have the older festool Brad point set that came with a similar countersink and it has the same chatter and clogging issues as everything else. Sent from my Nexus 5 using Tapatalk Quote Link to comment Share on other sites More sharing options...
shaneymack Posted October 18, 2016 Report Share Posted October 18, 2016 I have the older festool Brad point set that came with a similar countersink and it has the same chatter and clogging issues as everything else. Sent from my Nexus 5 using Tapatalk You're telling me you have that exact countersink and it chatters and clogs? I've never experienced that.....must be my lack of experience Sent from my SM-N910W8 using Tapatalk Quote Link to comment Share on other sites More sharing options...
JosephThomas Posted October 18, 2016 Report Share Posted October 18, 2016 You're telling me you have that exact countersink and it chatters and clogs? I've never experienced that.....must be my lack of experience Sent from my SM-N910W8 using Tapatalk No I'm telling you I have the one that comes with the original set I'll take a photo later... Sent from my Nexus 5 using Tapatalk Quote Link to comment Share on other sites More sharing options...
shaneymack Posted October 18, 2016 Report Share Posted October 18, 2016 That is the one that comes in the brad point set... Sent from my SM-N910W8 using Tapatalk Quote Link to comment Share on other sites More sharing options...
JosephThomas Posted October 18, 2016 Report Share Posted October 18, 2016 That is the one that comes in the brad point set... Sent from my SM-N910W8 using Tapatalk Not the older set Sent from my Nexus 5 using Tapatalk Quote Link to comment Share on other sites More sharing options...
gee-dub Posted October 19, 2016 Report Share Posted October 19, 2016 20 hours ago, treesner said: maybe this is what I need.. its at least marked toward my needs "chatterless countersink" http://www.leevalley.com/en/wood/page.aspx?p=41012&cat=1,180,42240,42281&ap=1 20 hours ago, treesner said: anyone tried this type of counter sink with the large hole in it? https://www.amazon.com/KEO-53511-Single-End-Countersink-Uncoated/dp/B00947BOYQ/ref=sr_1_34?ie=UTF8&qid=1476807536&sr=8-34&keywords=countersink I have both. It depends how, when and what you are using it for. On furniture where a clean appearance is foremost, the 'aircraft' style are my go-to. I use these specifically. The large one I mostly use in the drill press. Both types are chatter-free. Quote Link to comment Share on other sites More sharing options...
JosephThomas Posted November 17, 2016 Report Share Posted November 17, 2016 On 10/18/2016 at 4:04 PM, shaneymack said: That is the one that comes in the brad point set... Sent from my SM-N910W8 using Tapatalk Here's the sets of bits I have, fyi: Quote Link to comment Share on other sites More sharing options...
shaneymack Posted November 17, 2016 Report Share Posted November 17, 2016 Here's the sets of bits I have, fyi: I have those as well. Fantastic. I don't have the zobo bits though, too rich for my blood Sent from my SM-N910W8 using Tapatalk Quote Link to comment Share on other sites More sharing options...
JosephThomas Posted November 17, 2016 Report Share Posted November 17, 2016 Just now, shaneymack said: I have those as well. Fantastic. I don't have the zobo bits though, too rich for my blood Sent from my SM-N910W8 using Tapatalk Zobo bits? Quote Link to comment Share on other sites More sharing options...
shaneymack Posted November 17, 2016 Report Share Posted November 17, 2016 Zobo bits? Sent from my SM-N910W8 using Tapatalk Quote Link to comment Share on other sites More sharing options...
JosephThomas Posted November 17, 2016 Report Share Posted November 17, 2016 Anyway, as per our previous conversation, the contersink bit is different..it looks the same inthe picture on the box, but it;s different. Quote Link to comment Share on other sites More sharing options...
shaneymack Posted November 17, 2016 Report Share Posted November 17, 2016 Anyway, as per our previous conversation, the contersink bit is different..it looks the same inthe picture on the box, but it;s different. Weird Sent from my SM-N910W8 using Tapatalk Quote Link to comment Share on other sites More sharing options...
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