The two best ball-peen hammer replacement grips on Amazon are the Estwing E3-16P 16 oz. Straight Rip Claw Fiberglass Hammer with No-Slip Cushion Grip and the Stanley 51-621 16 oz. Fiberglass Rip Claw Hammer. Both products have 4.7 stars with over 1,000 reviews. They are both 16 oz. straight rip claw fiberglass hammers with no-slip cushion grips. They are both made in the USA. The Estwing hammer costs $20.97 and the Stanley hammer costs $19.97.

The Estwing hammer has a forged steel head and handle that are fully polished. The head and handle are welded together for ultimate strength. The Stanley hammer has a fiberglass handle that is shatter-resistant. The head is made of forged steel.

The Estwing hammer has a leather grip that is molded to fit the hand. The Stanley hammer has a cushion grip that is designed to absorb shock and reduce vibration.

The Estwing hammer has a head that is slightly larger than the Stanley hammer. The Estwing hammer also has a longer handle.

The Estwing hammer is made in the USA. The Stanley hammer is made in China.

The Estwing hammer has a lifetime warranty. The Stanley hammer has a limited warranty.

The Estwing hammer is slightly more expensive than the Stanley hammer.

The Estwing hammer is a better choice for those who want a durable, long lasting tool. The Stanley hammer is a better choice for those who are looking for a more economical option.