The invention discloses a multifunctional handheld drilling
machine for construction. The multifunctional handheld drilling
machine for construction structurally comprises a main hand shank, an auxiliary hand shank, a drilling
machine perpendicularity auxiliary device, a
drill bit, a snap ring, a machine body and a
shoulder rest. One end of the machine body is connected with the
shoulder rest, andthe other end of the machine body is provided with the
drill bit. Compared with the prior art, the multifunctional handheld drilling machine for construction has the beneficial effects that the drilling machine can
drill holes and collect drilling cuttings simultaneously, facilitate cleaning, effectively prevent the drilling cuttings from being splashed anywhere and from injuring an operator; thehand shanks adopt novel structures, the air can be circulated through the space to facilitate quick heat dissipation of the hands of the operator and the hand shanks, and heat of the hand shanks canbe prevented from being transferred to the drilling machine; hollow shank bodies can be cooled through cooling liquid, the hands are further prevented from getting hot and sweating, the hollow shank bodies can maintain cleanliness, antiskid outer shanks can keep dry to prevent bacterium breeding, and the service life of the drilling machine can be prolonged; and the multifunctional handheld drilling machine for construction is additionally provided with a
noise reduction and shock attenuation device, has the shock attenuation and
noise reduction functions, protects hearing of the operator against damage and prevents
noise pollution.