... cut 20,000 samples *Introduction:Impact test gap broach points V type and U, depth of 2 ... mm, 3 mm, 5 mm. This broach for import W18Cr4V material, hardness is HRC55 ~ 65, ... high hardness, good wear resistance, each broach can be processed sample more than 20000 (material hardness ... impact test method,*Parameter specifications:1, 2 mm gap broach specification (long x width) mm: 325 x 402 ...