I purchased my Estwing 20 oz. Vinyl Grip Rip Claw Hammer from a certain Blue store recently. Although it costs more than other hammers, the Estwing is superior due to its simple one-piece design. During a long day of installing wood siding with this hammer recently, I appreciated its flawless weight distribution and rigidity. The grip is of excellent design and proves comfortable day after day on the job-site. After a redesign from previous generations (which I have occationally used), the new grip material is softer, thereby reducing vibration noticably over previous models.