Tools & Resources. Most Men Don't Need PSA Tests, Doctors' Group Says. MONDAY, April 8 (HealthDay News) -- Men have long been encouraged to get prostate cancer screenings, but there's insufficient evidence that the benefits of a PSA test outweigh the substantial risks associated with the screening.
There are two types of crimp used when reloading handgun cartridges: the roll crimp and the taper crimp. Roll Crimping. With a roll crimp, the diameter at the very end of the case mouth is reduced, and rolled inward toward the bullet, leaving a slight radius at the top of the case.
The shaft taper refers to the shape of the shaft starting from the tip on back. If you have a 13mm tip and a 12 inch pro taper, that means measuring back down the shaft 12 inches, it stays at that 13mm diameter the full 12 inch length before it increases size towards the joint.ore and more cues are manufactured with no wrap at all. The shaft of a pool cue is generally made with a high grade of North American maple. Your comfort as a player can be affected by the diameter of the shaft as well as the type of shaft taper.