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What are the different types & sizes of rebate router bit?

  rebate router cutters  

Different types of rebate router cutter


Rebate router cutters

  An example of a rebater router cutter  

Rebate cutters are used to produce rebates for wooden joints, box lids, simple decorative edging and picture frames. They usually have a tip-mounted bearing guide, meaning they cannot be used for plunge routing. 

Various rebater cutters can be found in CraftPro, Trade, Professional TCT, and Replacement tip ranges, depedning on your needs.


Router strip recessers

  An example of a strip recesser router bit  

Strip recessers do not have tip-mounted guides and are used to create recesses with a rebate on each side. They are available from the Professional TCT range as tonk strip rebaters, as well as the CraftPro range as recess rebaters.

  A book shelf strip fitted into a slot created by a recesser  

These recesses are ideal for bookcase strips, and are shaped so that there is room for each shelf support to be slotted into the strip once it is mounted securely on the wall. These shelf strips are often called tonk strips.

  Shop for strip recesser router cutters  

What rebate router cutter sizes are available?


Rebate router cutters are most often sized according to the following dimensions:


Shank diameter of rebate router cutters

  Diagram showing how to measure the diameter of a rebate bit shank  

The shank diameter is measured across the centre of the shank from any point on its circumference.


Rebate cutters are available with ¼" (6.35mm), 8mm (5/16"), 12mm (½" approx.) and ½" (12.7mm) shank diameters.


Diameter of rebate router cutters

  Diagram showing how to measure the cutting diameter of a rebate bit  

The diameter is the maximum width of the router cutter, and is measured from the outermost point of the cutting edges through the centre of the bit. 


Rebate router cutters have diameters ranging from 13mm (½" approx.) to 50.8mm (2" approx.)


Cutting edge length of rebate router cutters

  Diagram showing how to measure the length of a rebate bit's cutting edge  

This is the maximum length of the full cutting edge of the router cutter. It is measured from the top of the cutting edge to the bottom.


Rebate router cutting edge lengths range from 12mm (½" approx.) to 22.5mm (⅞")

  rebate router cutters  

Guide diameter of rebate router cutters

  Diagram showing the different types of guides available on a rebate bit  

Rebate router cutters are supplied with a pin guide or ball bearing guide located beneath their cutting edges. 

  Diagram showing the location of the bearings on a rebate bit guide  


Bearings range from 9.5mm (⅜") to 22mm (⅞") in diameter. 


With most models, the guide bearing can be removed and replaced with a larger or smaller one in order to alter the cutting depth, and therefore, the width of the rebate. Some cutters come with a range of bearing, and bearings are also available as spares in a range of sizes. 

  Diagram showing how to measure the diameter of the pin on a rebate cutter guide  


Rebate router cutters are available with pins ranging from 6.35 (¼") to 12.7mm (½") in diameter. 


Rebate width

  Diagram showing how to measure the width of the rebate a rebate router bit will create  

With both bearing and pin-guided cutters, the distance between the outside edge of the guide and tip of the cutting edge will determine the maximum width of rebate that cutter will produce.


A larger guide in relation to the cutter will limit the cutting depth, creating a shallower rebate, while a smaller guide will expose more of the cutting edges, thus producing a wider rebate.

  Image to illustrate that a bearing guided rebate bit is usually customizable so that the size of rebate can be altered by the user  

With pin-guided cutters, the rebate size will normally be listed. 


However, bearing-guided cutters often come with a selection of different sized bearings to vary the rebate size. The rebates produced by using each combination will sometimes be listed. 

  Formula for calculating the width of rebate that a rebate cutter will create using the cutter diameter and the guide diameter  

If they aren't, you can work out the rebate width using the following calculation (this applies to pin-guided cutters as well): 


(Cutter diameter - guide diameter) ÷ 2 = rebate width

  Range of rebate sizes that can be produced by a TREND rebate cutter  

Rebate router cutters can produce rebates of between 1mm (3/64" approx.) and 19.1mm (¾" approx.).

  rebate router cutters for woodworking  
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