Bizstory NatureCraft I — Leaf Engraved Brass Keychain

The Bizstory NatureCraft I Leaf Engraved Brass Keychain celebrates the organic geometry of botanical forms through precision metalwork in solid brass. The pendant is cut from 2.4 mm gauge C260 cartridge brass sheet using CNC laser profiling accurate to 0.05 mm, then hand-filed along all 12 lobed edges to achieve a smooth tactile finish. The central leaf vein network is engraved to a depth of 0.4 mm using a rotating carbide burr, creating light-catching relief across a 48 mm by 25 mm surface. The raw brass is then tumble-polished with ceramic media for 90 minutes to bring the surface to a mirror grade of Ra 0.4 micrometers before a wax patina is applied by hand brush, allowing the background to develop a warm honey tone while the raised veins retain their bright polish. This differential finish creates a two-tone depth illusion that photographs especially well. A 20 mm nickel-plated brass split ring attaches through a drilled 4 mm hole reinforced with a stainless steel eyelet insert to prevent elongation under key load. The brass body will naturally develop a living patina over months of handling, shifting from gold toward warm amber and eventually deep brown according to personal skin chemistry. Each piece is unique. Net weight is 18 g.