A surgical instrument includes a housing defining a longitudinal axis therealong. The housing includes a plurality of pre-formed sections having a first pre-formed section including one or more openings defined therein and a second, adjacent pre-formed section including one or more openings defined therein in registry with the corresponding one or more openings defined within the first pre-formed section. The one or more openings of the first and second pre-formed sections, when assembled, define a length to each corresponding one or more openings along the longitudinal axis of the housing. An adhesive is configured to bond the first and second pre-formed sections together.
