Rock splitting wedge CB30

Rock splitting wedge for concrete breaker (e.g. Toku TCB-300 or Nakatari CB-35 etc)
 
A plug and a feather are one set. 
 
Shank size: 35φ x 87mm
 
The required hole diameter is 42mm.
 
Available size & unit price US$:
470mm: $63
600mm: $79