Everyday Carry

The body of the Helion Flip knife is made from a mix of carbon fiber and Kirinite

Outdoors

Magnetic carbon fiber knife makes blade swaps a breeze

Canadian outfit Ronin Energetics has taken to Kickstarter with a rather handy looking flip-knife that can be easily kitted out with replacement blades.

The Lyra knife is currently the subject of a Kickstarter campaign

Outdoors

Tiny Lyra knife uses clever folding linkage to stretch out for a four-finger grip

Offering a small blade with a friendly handle is a tricky task, and that's the one Horizon Knives has undertaken with Lyra. The morphing knife is small enough to be keychain compatible, but uses a nifty folding mechanism to give its users a good handle on the job.

All up, the Prylobite measures 9.9 cm (3.9 in) when open and weighs in at 23 g (0.81 oz)

Outdoors

Prylobite keychain knife packs a pry bar and wrench into its handle

The small steel Prylobite blade weighs no more than a handful of coins and packs up neatly thanks to a friction folding design, which incorporates a couple of handy innovations to take this utensil into multi-tool territory.

The closed Eclipse knife has a diameter of 1.8 in (4.5 cm), which is just 7 mm more than a US dollar coin

Outdoors

Coin-shaped pocket knife snaps into action

San Francisco’s Fulcrum Knives has taken inspiration from the humble coin to come up with a compact everyday carry option that can be slipped into a jean pocket, and then flicked into action with one hand when the need arises.