Makita Electric Breaker HM1317C with point breaker bit.
Product Details: https://www.makita.com.au/building-construction/category/demolition-hammers/hm1317c-30mm-hex-shank-electric-breaker
User Manual: https://www.makita.com.au/images/downloads/documents/manuals/HM1317C_manual.pdf
Please note, this item weights 17kg.