Halder Simplex 50-40 Oversized Replacement Insert, Grey TPE-Mid, Non-Marring Rubber, 1.97” (Fits Size 40 Simplex Housing)

A thermoplastic elastomer, the SIMPLEX insert TPE-mid boasts a hardness of approx. 90 Shore A, making it an insert of medium hardness (comparable to the hardness of the rubber composition insert included in the 3202 series)
Unlike conventional rubber mallets, this grey insert does not leave behind any undesired black marring
This special version has a head diameter of D50mm, but is built into a D40mm housing
Oversized contact surfaces provide maximum protection to workpieces with sensitive surfaces and also keep the housing from causing scratches on the surfaces