Not really necessary. How many times have you hammered your fingers? Zero in my life, but let's knock on wood. But this tool will help you hammer nails faster. You used to start slow because if you swing hard and miss you get fingers. Now that my fingers are out I can start with a much stronger swing. The holder is made of durable plastic that weighs about 4 ounces. The hammer is a good little sturdy hammer weighing about 13 ounces. This includes some nails and a pair of gloves. 5 Stars!
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