Percussion tool for boom mounted hammers
作者： William D. Blackburn , David J. Markham
DOI:
关键词:
摘要: A percussion or hammer tool (20) having a substantially rearward shank portion (24) of first diameter (ds) and cylindrical forward (26) second (dt). The is size shape to be received into socket chuck housing (33) boom mounted power (14). includes distal end (28) an adjacent integral striking face (30), such as blunt (31), moil point (31'), chisel (31''). (dt) 15-25 % larger than that the (ds).
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