I am not a scientist or engineer but I most certainly discovered that there can be a huge difference in drill bits by brand.
I have a Grizzly G0462 lathe and it does not have a hand wheel on the left end, but it is threaded for one. I ordered the hand wheel and discovered another anomaly - the hand wheel does not have a hole through the center line through which to use a rod to tap out MT (morse taper) shafts when they are stuck.
So I decided to drill out a hole by mounting the wheel's shaft in a chuck and drilling from the tail stock. I got my Ti HF bits to use and it kept wanted to skate (the bit was new.). I tried a different bit, same thing. I figured I needed a cobalt counter sink bit to get the hole stared, but could not get one within the needed time, so I decided to check HD and Lowes. Lowes had DeWalt PILOT POINT titaniums, both in sets and individually. I bought a single 1/4" Dewalt pilot point to bore a hole through the hand wheel shaft, about 2 1/2 inches. It did not skate and bored though the soft steel like it was butter. Of course I used cutting oil and it was smooth drilling all the way. I would drill in 1/4" to 3/8", pull out, and add drop of oil and drill another 1/4 to 3/8".
I have never had normal titanium bits drill that easily. When I finished, I cleaned the the Dewalt pilot point and it looked clean and hardly used.
Anyone else familiar with the differences in Titanium plating on different brands? I was shocked in the differences. It could have been the pilot point itself, but it seemed from my observation and feel that it was a much higher quality bit than the HF Titanium.
I have a Grizzly G0462 lathe and it does not have a hand wheel on the left end, but it is threaded for one. I ordered the hand wheel and discovered another anomaly - the hand wheel does not have a hole through the center line through which to use a rod to tap out MT (morse taper) shafts when they are stuck.
So I decided to drill out a hole by mounting the wheel's shaft in a chuck and drilling from the tail stock. I got my Ti HF bits to use and it kept wanted to skate (the bit was new.). I tried a different bit, same thing. I figured I needed a cobalt counter sink bit to get the hole stared, but could not get one within the needed time, so I decided to check HD and Lowes. Lowes had DeWalt PILOT POINT titaniums, both in sets and individually. I bought a single 1/4" Dewalt pilot point to bore a hole through the hand wheel shaft, about 2 1/2 inches. It did not skate and bored though the soft steel like it was butter. Of course I used cutting oil and it was smooth drilling all the way. I would drill in 1/4" to 3/8", pull out, and add drop of oil and drill another 1/4 to 3/8".
I have never had normal titanium bits drill that easily. When I finished, I cleaned the the Dewalt pilot point and it looked clean and hardly used.
Anyone else familiar with the differences in Titanium plating on different brands? I was shocked in the differences. It could have been the pilot point itself, but it seemed from my observation and feel that it was a much higher quality bit than the HF Titanium.
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