| - | Features |
|---|---|
| #1 | Hammer actuated tool with a barrel design that allows for easy horizontal and overhead fastening, up to 2 1/2 inch drive pins |
| #2 | For small DIY projects, such as fastening two by fours and furring strips to concrete in basements or room additions |
| #3 | Impact-resistant handle with contoured grip |
| #4 | Larger strike nut than the HD22 |
| #5 | Fewer misses with large striking surface |
| #6 | Greater comfort with impact resistant handle and finger grooves |