Why Use Bevelled (Angled or Hoof) Tips:-
  Bevelled Tips - Benefits: Our bevelled (angled) tips can replace (be used instead of) either chisel or conical tips. This versatility is because they are ideal for:
   •  Small Jobs: By using their pointed tip.
    •  Large Jobs: Their large flat surface holds more solder than some other tips. This pre-loading of the tip with plenty of solder is handy for joining wires together or dragging solder across multiple pins.
  Tips Comparison: Bevelled tips (with angled face) are better than conical tips for soldering larger components because:-
The bevelled (angled) tips’ larger, one-sided face (larger than conical or some chisel tips) has more thermal-contact area to transfer heat more quickly. Think of thermal-contact area (tip face) as a large gate or tap, which if too small will prevent efficient (instant) heat transfer.
A bevelled (angled) tip may be slightly bigger (greater “thermal mass” = greater reservoir of heat) to supply more total heat before cooling-off (for larger jobs).
  Tips Too Small: Tips that are too small restrict heat transfer (like a small gate or tap) which may result in:
Insufficient total heat causing unreliable, loose solder connections.
An increase in soldering time causing heat-damaged components.

Which is the Best Tip-Size (e.g. for SolderPro180):
  •  Small: A small solder joint requires less heat-energy. So, a soldering iron tip's small thermal mass (small tip) stores just enough heat-energy to melt the amount of solder required for a small joint. Our 1.8 mm conical tip is small.
  •  Too Small: Where the thermal mass of a large soldering joint (job) is greater than the small tip (of soldering iron), the heat-transfer (from tip to job) will require more heat than is available (from the small tip). This causes the solder on the joint to partially re-solidify before completion. If then, you hold the small tip on the joint for too long, it causes excessive heat soak and risk of heat-damage to the surrounding components and insulation. To prevent this, use a soldering iron with a larger tip (more thermal mass). Our 1.8 mm conical tip is too small for large jobs.
  •  Large: Soldering a large joint (job), it requires greater heat transfer (from a larger soldering iron tip). Although a larger tip takes longer to heat up, this gives it a greater energy reservoir (more heat in reserve). Then, when soldering large wires, the larger tip will melt the solder more easily and quickly. This reduces the time for the tip to transfer heat to the job. Thus, when more heat is available (from larger tip), it actually reduces the risk of heat-damage (reduces heat soak) to the surrounding components. Adjusting the heat of a small tip to be higher has a similar benefit because more heat-energy is packed into the tip.

What is Thermal Mass?
  Thermal Mass is determined by:
      •  Size and density of an object, (e.g. both solder joint & tip of soldering iron).
  Thermal Mass affects:
      •  Absorption rate and storage of heat-energy of an object (Heat-sink)
  Thermal Mass Ratio: When soldering, a good balance of thermal mass is required between:
      1.  Solder Job or Joint (heat-sink), and
      2.  Soldering Tip (heat source)
   A correct balance of thermal mass keeps the solder molten during the heating of the joint (job). This balance starts with the purchase of the correct soldering tip size and its shape (and soldering iron).