Black Rubber inserts for Simplex Hammers are medium soft. Applications include assembly operations, dent removal, prefabricated housing construction, carpenter's work, paving, masonry work, concrete-form setup, scaffold construction, gardening, landscaping, and interior construction.

Design your own custom hammers. Simplex soft-face mallets can be customized for specific applications by selecting the proper hammer inserts. Choose the same type of insert for both sides, or build a multi-purpose hammer with a different type of insert for each face. The Simplex system uses a patented hammer housing with 3-point clamping that ensures a safe hammer assembly.

| Item | Material | Heat Treat | Finish | DFARS | RoHS |
| Type B Inserts | Rubber textile fiber mixture | - | black color, medium soft, hardness 90-100 Shore A | โ | โ |
| Hammer Size (Face Diameter) | Tightening Torque With Wooden Handle (ft-lbs) | Tightening Torque With Fiberglass Handle (ft-lbs) |
| 30mm (1.18) | 11 ft-lbs | 18 ft-lbs |