The declination is the angle of contact between the sample vertical and knife blade. He taught himself to play using this method with the back of a knife blade. It's kind of like you're sitting on the edge of a knife blade. It has a hardness of about 5.5, that of a knife blade. They adopted simple peep sights, which were later replaced by a knife blade sight. Thompson has a vision of Hatch driving a knife blade into Helton's stomach. Charlie forced Dean to kneel and fellate the knife blade. The knife blade that strikes the sacrifice is rubber. Removal of solids from the discharge roll is done via a knife blade. It consisted of a knife blade tied to a stalk of taquara cane. Some match safes incorporated a cigar cutter or a small knife blade as well. One copper knife blade was also discovered at the site. An electrician's knife typically has a locking screwdriver blade but a non-locking knife blade. The knife blade is actuated either by means of pneumatic or electrical actuators.