Season 13

01 Hammers, Swiss Cheese, Roller Skates, Coloured Pencils Episode 124th April 2009 Steel heads are forged and fitted with handles to make hammers, cultured milk is processed and aged into Swiss cheese, boots are mounted on wheeled frames to create roller skates, and coloured cores are enclosed in shaped wooden casings to make pencils. 02 Carbon Fiber Bicycles, Blood Products, Forged Chandeliers, Ballpoint Pens Episode 21st May 2009 Carbon-fiber layers are molded and cured into lightweight bicycle frames, donated blood is separated into medical products, heated metal is forged and assembled into chandeliers, and ink reservoirs and writing tips are installed in ballpoint pens. 03 Swiss Army Knives, Player Piano Rolls, Oil Tankers, Racing Wheels Episode 38th May 2009 Blades and folding implements are assembled into Swiss Army knives, paper rolls are perforated to control player pianos, large steel sections and storage tanks are assembled into oil tankers, and lightweight metal is formed and finished into racing wheels. 04 Bowling Balls, Barber Poles, Felt, Radar Guns Episode 415th May 2009 Resin and weighted cores are molded and polished into bowling balls, illuminated rotating cylinders are assembled into barber poles, compressed fibers are processed into felt, and microwave components are calibrated inside radar guns. 05 Copper Pipe Fittings, Cylinder Music Boxes, Pepper Mills, Hot Rod Steering Columns Episode 522nd May 2009 Copper tubing is shaped into plumbing fittings, pinned cylinders and tuned metal combs are assembled into music boxes, grinding mechanisms are enclosed in pepper mills, and shafts and articulated joints are assembled into custom hot-rod steering columns. 06 Gears, Leather Watchbands, Vitrelle Dishes, Kitchen Shears Episode 629th May 2009 Metal blanks are cut and finished into precision gears, prepared leather is shaped and stitched into watchbands, laminated glass is molded and strengthened into Vitrelle dishes, and hardened blades and handles are assembled into kitchen shears. 07 Pressure Cookers, Mechanical Singing Birds, Oceanographic Buoys, Tank Trailers Episode 75th June 2009 Locking lids and pressure-control valves are fitted to pressure cookers, miniature mechanisms animate mechanical singing birds, scientific instruments are installed in oceanographic buoys, and stainless-steel tanks are fabricated and mounted on transport trailers. 08 Aluminum Boats, Alpine Horns, Luxury Watches Episode 812th June 2009 Aluminum sheets and structural supports are formed and welded into boats, selected wood is hollowed and shaped into long Alpine horns, and precision movements, cases, dials and hands are assembled into luxury watches. 09 All-Terrain Vehicles, Alpine Skis, Laser Cutters, Marble Sculptures Episode 919th June 2009 Engines, frames and suspension systems are assembled into all-terrain vehicles, laminated materials are shaped and finished into Alpine skis, optical and mechanical systems are combined into industrial laser cutters, and stone is carved and polished into marble sculptures. 10 Socket Sets, Leather Shoes, Aluminum Water Bottles, Bike Chains Episode 1026th June 2009 Hardened steel is forged and machined into sockets and ratchets, prepared leather is cut and formed into shoes, aluminum blanks are shaped into reusable water bottles, and steel links, pins and rollers are assembled into bicycle chains. 11 Carved Wood Sculptures, Flatware, Cow Bells, Fountain Pens Episode 113rd July 2009 Blocks of wood are carved and detailed into sculptures, metal blanks are stamped and polished into flatware, formed sheet metal is assembled and tuned into cow bells, and ink reservoirs, feeds and nibs are fitted into fountain pens. 12 Olive Oil, Lift Trucks, Seamless Rolled Rings, Ski Boots Episode 1210th July 2009 Harvested olives are crushed and separated into olive oil, engines and hydraulic lifting systems are assembled into lift trucks, heated metal blanks are rolled into seamless rings, and rigid shells, liners and fastening systems are combined into ski boots. 13 Professional Cookware, Luxury Inlaid Boxes, High-Efficiency Water Heaters, Scooters Episode 1317th July 2009 Layers of metal are formed and finished into professional cookware, decorative veneers are cut and fitted into luxury inlaid boxes, insulated tanks and efficient heating systems are assembled into water heaters, and engines, frames and body panels are combined into scooters.