5 drawing tools every architecture student must have — The Architectural Experiment
GraphGear 500 Mechanical Drafting Pencil — Pentel of America, Ltd.
Architects Pencil Set with Scale – ARCH Art Supplies
Amazon.com : Aitikili 2mm Mechanical Pencil Set, 2 Pieces Artist Carpenter Drafting Pencils 2.0 mm with 2 Tube Lead Refill (HB, 2B), Art Lead Holder Metal Marker for Draft Drawing, Writing, Art