Circular Saw Blade Fitment Guide – Choosing the Right Blade for Your Saw
Choosing the right blade can be overwhelming given the
combination of factors available for a given size of blade. The right selection
is important from an efficiency and safety point of view. When choosing a blade
always go for a replacement the same size as your current blade. Typically
blades will be marked with text such as: 210/30/32T. This would mean a 210mm
diameter blade with 32 Teeth and a centre bore of 30mm.
The Kerf is the thickness of the Blade Teeth and therefore the width of the
The Bore or Centre Hole of the Blade.
The Plate is the main part of the blade. Thin plates are often used with
The angle or hook of the cutting teeth relative to a line from the centre of
the blade. If the top of the tip leans toward the edge, that’s a positive hook
Hand Held Saws and Table Saws will normally use a positive rake
Mitre Saw or Radial Arm Saws will normally use a zero degree
or negative rake blade to avoid kickback when cutting timber by means of lowering
the blade onto the workpiece.
Also known as a Bush, rings are available to reduce the bore of a blade to a
smaller bore. Many of our blades are supplied with a range of reduction rings.
The number of teeth on a blade will influence how smooth the final cut is.
Generally the more teeth per inch the smoother the cut. For thicker material
use a blade with less teeth to avoid burning. Soft materials will chip with too
few teeth ans burn with two many so use one in-between.
The shape of the teeth which dictates the primary purpose of the blade. There
are different types of teeth for specific jobs. For example specialist cutting
of materials such as laminated wood or aluminium. Blades can have different
types of tooth geometry, Alternate top bevel (ATB) for general cutting
applications and triple chip geometry which is used for blades cutting
laminated wood or aluminium. Here is a short guide:
ATB – Alternate Top Bevel – Typically used for cross grain
and some ripping blades. (Ripping is cutting with the grain).
FTG – Flat Top Grind – For cutting with the grain
TCG – Triple Chip Grind – Typically used for harder
materials and aluminium
Nail cutting blades are available and suitable for cutting
wood containing the occasional nail.
Improves performance by reducing heat build up.
We have blades to suit all budgets and from many
manufacturers. If you don't see just what you want please get in touch.