I took the rucksack off and managed to unzip the top pocket with one hand to get the penknife out.
A sharp implement (a penknife or small screwdriver blade) driven into the timber would have had little resistance on entry or removal.
The man drew out a switchblade the size of a penknife .
The mother said her daughter had still not been able to repeat to her family what the boy said to her as he held the penknife blade against the skin of her throat.
The common window latch can be opened from the outside with a butter knife and just five seconds; the screens require a penknife and an additional five seconds.
Recently my brother was boarding a plane to Spain when he found he'd forgotten to remove a heavy-duty penknife from his pocket (he's apt to do that sort of thing).
The masonry is so finely worked that a penknife blade cannot be fitted into the cracks, and windows or niches are trapezoid to counteract gravity in a quake.
Taking a penknife from his combat belt he flicked out the knife and prised out the device.
The stash he keeps in his pockets include string, a penknife , matches, a chunk of crystal, a broken watch, a whistle, and countless other things.
Pulling out a small penknife from her pocket, she opened it and pushed the thin blade into the small gap at the bottom of the window.