I added a note about armour-piercing blades to the posts above, accounting for the estoc and stiletto and making it possible to make these in any size.
Here are the stats for a 12" stiletto (built by applying the Armour-Piercing Blade and Thrusting Sword options to a Large Knife) and an estoc with a 40" blade (Longsword with an Armour-Piercing Blade option applied).
Code:
TL Weapon Damage Reach Parry Cost Weight ST Notes
KNIFE (DX-4, Force Sword-3, Main-Gauche-3, or Shortsword-3)
4 Long Stiletto sw-3 cr C, 1 -1 $160 1 6 [3]
or thr-2(2) imp C -1 – – 6 [4,6]
MAIN-GAUCHE (DX-5, Jitte/Sai 4, Knife 4, Rapier 3, Saber 3, or Smallsword 3)
4 Long Stiletto sw-3 cr C, 1 0F $160 1 6 [3]
or thr-2(2) imp C 0F – – 6 [4,6]
TWO-HANDED SWORD (DX-5, Broadsword-4, or Force Sword-4)
3 Long Estoc sw+1 cr 1 0 $2,800 4 9†
or thr+1(2) imp 1,2 0 – – 9† [6]
Notes:
[3] Gives a -1 to skill when used to swing.
[4] Gives +1 to skill with a thrust.
[6] Reduces the penalty for targeting chinks in armour by -2.