Product testers needed

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Daniel

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Jan 1, 2004
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Reno, NV, USA.
In the interest of the drill bits group buy I am trying to organize, I am looking for a small number (3-5) of drill bit testers.
There are a few requirements though.
1. you need to have some experience such as working in a machine shop or other experience that gives you above average opinion about the bits.
2. I have done this sort of thing in the past and not gotten people to post there comments. So this time I'm charging a refundable deposit of $20.00 that I will give back once your evaluation has been posted. i will create a thread to post this evaluation in.
3. this is not a good way to get free drill bits. as I would like them to be worn out or broken when you are done if needed.
4. I will be making a list of specific details I want evaluated. these will include but not be limited to
a. measuring any run out in the bit as it is chucked in a drill press.
b. evaluating quality of finish and machining.
c. estimating average number of uses until it is dull, broken or burned up.
d. it's performance on extreme materials like oak, Iron wood, acrylics, and possibly even iron or steel. (I'm thinking drill through Iron until bit is to dull to drill any more just to see how long it holds up).
e If possible how it preforms after being resharpened.
f. If you can't destroy it then feel free to keep it
g. how it performs at chip clearing and overheating in deep holes. (remember we ask extreme performance in our bits in this regard)
h. basically anything you can think of to abuse it and see how well it holds up. Broken is not a bad thing as long as you have a way of measuring just how far it was pushed before it broke.

As an example I have a machinist shop at work that I will take a few of the bits to to get the managers comments. I expect him to be able to compare it to other bits of other quality and materials, as well as price. i am not looking for HSS to perform like cobalt.

HSS bits can be made from at least 5 different types of steel. having some knowledge of this and some experience with bit made from some of these other alloys would be a big plus.

Please post here, e-mail me or PM me if you are interested in being considered as a tester.
 
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Daniel: Just curious about this point? How will you know whether the runout is due the the drill chuck or the bit or for that matter, the DP itself?

It seems to me that the easiest way to do this would be check the run-out on the drill bits and DP you are now using, and then compare them to the new bits to see if it is less or more! If you chuck up several different size bits you now have, and record the results, you can average these for a basic starting point. Then you check the run-outs of Daniel's bits. If they are more, the bits are the cause. If they are less than the previous average, then the new bits have less run-outs. If they are the same, then the run-out is caused my the chuck/Dp combo, and no matter what bits you use, this will be the run-out.

Of course you could use a machinist standard and check the run-out first with that, then check with then new bits.
 
wouldn't anyone qualified to do this already know the run out of there drill press?:rolleyes:
Serioulsy I was thinking they woudl have to measure both and then figure the difference. I really expect the bits to be at least straight though. My bigget concern is that they are accurate as to diameter. this is the most critical thing for us as penturners. that and they can stand up to at least some abuse. I'm thinking of the new people that do not clear chips often enough so quickly burn up the smaller bits. I am also looking for a few people that will take the time to actually wear out the cutting edges on them by drilling into steel or iron until they will not effectivly drill any more. on most of my HSS bits this does not take a lot of time to do.

I will be running soem of the bits through some real life application tests. using a hand full of them to actually make end grain deep bore holes in various types of wood from soft to hard as well as acrylics. I will watch for how clean a hole they make, how well they clear chips. heat build up etc. as well as how they do on exiting the material with no back up block. so I ezpect to blow out a few blanks as woudl be expected from the quality of bits we currently use. I will also run the same tests with my HF set of Ti coated bits.

Basically it is costing me $50.00 to get the samples, I want them to count for something.
 
Daniel, I will test and evaluate your drill bits. I am a tool and die maker by trade and have a bridgeport mill and a clausing engine lathe in my barn. PM me with paypal info for the deposit.
 
Daniel, since I shot my mouth off about the quality of various features of the Chinese drills, I'll test some for you and try and obtain some empirical data, I can check them out in a brand new Hass CNC lathe on metal for distance bored and chuck them up and check runout and size email me you PayPal info, then I can check them in some Ipe and DIW, and last in acrylic, that should give an Idea of quality.
 
Ken, very kind of you. We now have proof that you can still get yourself in trouble even if you dont actually speak lol.
I think I have enough victims for testing now so thanks everyone. Ken I will e-mail you with details.
 
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