BAUER SDS MAX first use *PLUS* DIY tamper bit

FIRST USE of a Bauer SDS Max rotary hammer drill 11 amp, where I am just using it as a compactor in the hammer only mode. I needed a tamper to stabilize my 12 posts and Harbor Freight did not have an SDS tamper / compactor bit in stock (does anyone even make one?) so I fabricated my own. The HF tamping bar was useful but didn't go very deep. BAUER 11 Amp, 1-9/16 in. SDS-MAX Type Variable-Speed Rotary Hammer ITEM # 59100