The Helix Precision Plus Drawing Set has everything you need for higher accuracy and larger technical or professional drawings. Ideal for hi-spec and professional use, this set includes:. Quick Release Precision Compass. Precision Thumbwheel Compass. 140mm Extension Arm. 2mm Replacement Leads. Pen Adaptor The maximum circle diameter allowed with this set is 430mm.
Helix Precision Plus Drawing Set£17.99 £14.99More info