SDS-plus rotary hammer drill bits, for use with VICTL 1000 Bosch hammer drill.
7 pieces.
5/8" x 9 1/4" boring depth; 1/2" x 9"; 1/2" x 4"; 1/4" x 4"; 3/16" x 3 3/4"; 5/32" x 2"
Largest one is approx. 13/16" x 8 1/2", but markings are gone.
Missing 3/8" bit.