- Ø 102 mm - for air duct leadthrough E 4000 A
- Ø 86 mm - for swiveling air outlet SCW 2
- Ø 83 mm - for wall flue Trumatic C 3402 / C 6002 or wall-, roof- and floor flue Trumatic E 4000
- Ø 70 mm - for wall flue Trumatic E 2400, roof flue Trumatic S 5002 or air outlet BE and end air outlet EN
- Ø 64 mm - for floor flue Trumatic E 2400
- Ø 60 mm - for roof flue Trumatic S 2200 (P), S 3002 (P) and (K)
- Ø 54 mm - for control panel installation
- Ø 22 mm - for the leadthrough of the gas supply line or control panel cables
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Borer accessories
Truma offers bore-crowns for air duct leadthrough, wall flues, control panels and gas supply line. According to device here you find the right bore-crown for a correct fitted installation.
Bore-crown

Also available are holders for bore-crowns and spare bill bits.
- holder for bore-crowns over Ø 25 mm
- holder for bore-crown Ø 22 mm
- Spare drill bit 84 mm long for holder over Ø 25 mm
- Spare drill bit 79 mm long for holder Ø 22 mm












