Match Hacksaw Blade Teeth to Material for Clean Cuts

Selecting the right hacksaw blade comes down to teeth per inch (TPI). Too few teeth on hard material causes stripped teeth and slow cuts; too many on soft material clogs the blade and overheats. Match TPI to material thickness and hardness.

For soft materials like aluminum, brass, or plastic, use a blade with 14 to 18 TPI. The large gullets clear chips easily and prevent binding. This tooth count also works well on thick stock (over 1/4 inch) regardless of hardness.

For hard materials such as steel, stainless steel, or cast iron, choose 24 to 32 TPI. The finer teeth shear through hard surfaces without skipping. Thin-walled tubing and sheet metal also require 32 TPI to avoid tearing.

When cutting thin material, always use higher TPI to ensure at least three teeth contact the work. For thick or soft material, lower TPI improves cutting speed and chip removal. A simple rule: more TPI for harder, thinner work; fewer TPI for softer, thicker work.

Finally, apply a light wax or oil to the blade before cutting. This reduces friction, extends blade life, and produces a smoother cut. Now you can select the right blade every time.

#HandTools# #3DPrinters# #Micrometers#