HD5S - PEN. Small Razertip Sharp Spear Fixed Tip Pen - heavy duty.
Small Round Sharp Spear - Heavy Duty
Knife like skew with rounded heel and toe. Good for straight and lazy/tighter curved lines. More robust than F1L...can take more pressure. Good choice for hard timber, heavier pressure or shallow carving. Smaller blade than the HD7M. Use for fine detail in confined areas. Great for burning crisp detail on sculpted or "bumped" surfaces. Good pen for engraving into a surface.
The tip is welded to the pen body providing great conduction and durability.