Metal saw blades are tools commonly used to cut metal materials in the
machinery industry, but users know that band saw blades will become dull after a
period of use, resulting in uneven cutting, and the sawing surface formed on the
workpiece is very rough and irregular. The phenomenon of the rules, at this
time, needs to be sharpened and sawtooth, the editor of Alid will tell you some
tips.

1. First, determine the type of sawtooth of the band saw blade, simply
measure the curve size of the sawtooth shape according to the type of sawtooth,
and then buy a small grinding head that is suitable for the sawtooth shape
curve, put the small grinding head on the sawtooth of the band saw, and observe
Whether the diameter of the grinding head conforms to the serration shape curve
and whether the rake angle of the serration can be ground. It should also be
noted that the diameter of the grinding head is usually between 3mm and 6mm, and
the shape of the grinding head can be cylindrical or brush head shape. , And
choose a higher hardness.
2. Clamp the saw tooth of the blunt band saw blade up and horizontally on
the jig, then check the saw road condition to see if it needs to be sawed road
correction. If saw road correction is needed, use saw road pliers to make
corresponding corrections. After gear shifting, saw road condition inspection
and correction, then sharpening.
3. You can also install a suitable small grinding head on an adjustable
electric hand drill or small electric grinder. Adjust the speed of the electric
hand drill to a high speed (that is, a speed of several thousand revolutions),
and adjust the small electric grinder to 3000 or 4000 revolutions, and then
place the grinding head on the curve of the root of the saw tooth, and lean
against the front corner of the saw tooth. Tighten it, and move the grinding
head back and forth slightly several times, it will naturally be able to grind
out very sharp serrations.
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