BBD 15 ET (8311 0104 13) is the largest BBD version drill available with a trigger valve. If you have the older version i.e. BBD 15 E (8311 0104 10), you can modify it by a trigger conversion and make it the same as BBD 15.
Technical Specification
| Model # | BBD 15 ET | |
| Weight | 15.6 kg | 34.5 lb |
| Length | 575 mm | 22.7" |
| Air consumption | 22 l/s | 47 cfm |
| Air pressure | 6 bar | 87 psi |
| Blows per minute | 2520 | |
| Revolutions | 220 rpm | |
| Piston dia (mm / inch) | 45 mm | 1.7" |
| Hose connections | 19 mm | ¾” |
| Air inlet (Swivel) | 16 mm | ⁵/₈" |
| Shank size - (8311 0104 13) | 22 x 108 mm | ⁷/₈" x 4¼" |
| Shank size - (8311 0104 12) | 19 x 108 mm | ¾” x 4¼" |
| Manufacturer | OEM | |