Copper inserts for Simplex Hammers are hard and provide maximum impact. Plastic socket provides for secure mounting of the copper insert in the hammer. Applications include machine construction, automotive assembly and repair work, repair and maintenance work, and vehicle service stations.

Design your own custom hammers. Simplex soft-face mallets can be customized for specific applications by selecting the proper hammer inserts. The Simplex system uses a patented hammer housing with 3-point clamping that ensures a safe hammer assembly.

Type H copper inserts can be used only in Simplex Hammers with a fiberglass handle and black handle housing.
| Item | Material | Heat Treat | Finish | DFARS | RoHS |
| Type H Insert | Copper with a plastic socket | - | - | Yes | Yes |
| Hammer Size (Face Diameter) | Tightening Torque With Fiberglass Handle (ft-lbs) |
| 30mm (1.18) | 30 ft-lbs |