A recent question asks about disassembling a multi tool pictured below.
We have an existing question How do you fashion a spear with a fixed blade. All of the blades pictured are long handled and/or have a long tang. A long tang provides a solid mounting point as shown in the accepted answer.
Half a dozen multi tool blades would be a small and light addition to my survival gear. If they were all potential spears it could make a huge difference in a survival scenario, and would keep my primary long handled knife from being at risk of loss or damage in a spearing event.
Can I use the blade of a multi tool as an effective spear point? If so, how would I attach it?