For an idea of their HPs, I randomly killed 10 of these from all over the zone. One on one, strictly melee damage, went as follows:
1 - 123
2 - 101
3 - 112
4 - 119
5 - 127
6 - 132
7 - 103
8 - 121
9 - 123
10 - 89
So they have on average 115 HPs, give or take depending upon level I assume.

Bone Chips
Rusty Axe
Rusty Bastard Sword
Rusty Broad Sword
Rusty Dagger
Rusty Long Sword
Rusty Mace
Rusty Morning Star
Rusty Rapier
Rusty Scimitar
Rusty Short Sword
Rusty Shortened Spear
Rusty Spear
Rusty Two Handed Sword
Rusty Warhammer