Hello, I'm tapping a 1-8 thread in 304L on a cnc lathe with rigid tapping, it's a 2-1/2 deep blind hole but have room for chips, minor is 3-1/2 deep, I was using a 4 flt hand tap but it broke on the 6th part, I was peck tapping at every 1/2 inch, I put in a spiral point 3 flt and wondering if I should peck or not seeing that the spiral point will push the chips ahead of the tap, I tapped one hole and looked like it was re-cutting the chip, try'ed to blow the chip off, didn't work, I'm using oil. any help would be great. thank's