ISO 001 / 801
 round

ISO 002 / 802
 round with collar 

ISO 010 / 805
inverted cone

ISO 019 / 806
inverted cone with collar

ISO 021 / 810 
inverted cone cup, hallow

 ISO 039 / 811
barrel

ISO 111 / 840
flat end cylinder

 ISO 164 / 852
pointed cone

ISO 171 / 846
flat end taper

ISO 250 / 863
flame

ISO 260 / 875
bud

ISO 490
water cooled