chromium plated zinc head -LRB- except THO720 12-720N which has a cast iron head -RRB- with two screw-in nylon which are designed to be replaced when attrited. THO708, THO720, THO710R and THO712R are with woody handles while THO710, THO712, THO714 and THO716 have impressionable handles. All two Elwyn Brooks White nylon faces except THO710R and THO712R which have one Elwyn Brooks White nylon and one subdued article of clothing approach. in 6 incompatible weights. as a multi-purpose spectacular tool in most assembly applications including engineering, furniture making, shopfitting, partitioning, substitute glazing and injection margin operations.Alternative color coded faces to distinguish hardness are also available.One diffused writer and one case-hardened light face.Diameter 38 mm -LRB- 1 1/2 in -RRB-. : 650g -LRB- 1 1/2 lbs -RRB-. 712R diffused & case-hardened Hammer Wood Handle 38 mm 650g .