What process does each style of steel go through to make a knife blade?
420HC blades: Crater series • Fineblank – precision stamping process • Flat finish – takes off initial burs from the stamping process • Heat treat – this is a Quench Bath heat treat • Mass finish – round over the sharp edges • Double disc grind – makes the blades very flat at a precise thickness • Lock taper grind – precision grinding of the KB lock face (only on c3/e3) • Hollow grind – grind the main bevels and false edges • Bead blast – creates matte surface finish • Sharpen 154CM blades: Expanse series • Laser cut – 154CM is too hard to blank, so it must be laser cut • Heat treat – this is a Cryogenic heat treat • Mass finish – round over the sharp edges • Machining – precision hole drilling and counter sinking operation • Double disc grind – makes the blades very flat at a precise thickness • Lock taper grind – precision grinding of the KB lock face (only on c3/e3) • Sharpen • Buff
