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What are the parts of a mortar rake?

Shop for Mortar Rakes

There are a variety of mortar rakes available with slight variations in their designs. There are a variety of mortar rakes available with slight variations in their designs.

Mortar rake shank

The green circles highlight the shanks on mortar rakes - shanks are the part of the mortar rake that connect to the power tool.  The green circles highlight the shank, which is the part of the mortar rake that connects to the power tool.
The shank is either gripped by a drill chuck ... The shank is either gripped by a drill chuck…
... Or it screws onto the spindle of an angle grinder ... …Or screws onto the spindle of an angle grinder…
... Or, the shank screws onto an adaptor which in turn screws onto an SDS Plus Drill. …Or, the shank screws onto an adaptor which in turn screws onto an SDS plus drill.
The small arrows to the left highlight the width of the shank. This width is usually measured in millimetres, abbreviated to an 'M', and referred to as the 'thread' size. Most mortar rakes are designed to fit on small angle grinders which take a 14mm mortar rake, written as 'M14'.

Shank size

The small arrows to the left highlight the width of the shank. This width is usually measured in millimetres, abbreviated to an ‘M’, and referred to as the ‘thread’ size. Most mortar rakes are designed to fit on small angle grinders which take a 14mm mortar rake, written as ‘M14’.

The width of these measurements corresponds to the pattern of the screw either inside the shank (in technical terms 'Female' thread) The width corresponds to the pattern of the threads either inside the shank (the ‘female’ thread)….
Or on the exterior of the shank (in technical terms 'Male' thread) of the mortar rake. …or on the exterior of the shank (the ‘male’ thread), of the mortar rake.

Mortar rake cutting / grinding section

 The cutting or grinding section of the tool is highlighted in yellow. There are lots of variations in the design of cutting or grinding sections of mortar rakes. The cutting or grinding section of the tool is highlighted in yellow. There are lots of variations in the design of cutting or grinding sections of mortar rakes, but all of them are designed to fit in the channels of mortar between brick and stonework. Their cutting / grinding sections have small diameters which enables them to move up and down as well as along the mortar channels.
The cutting / grinding section of mortar rakes are small shafts either featuring flutes or a gritted surface. The cutting/grinding section of mortar rakes consists of either flutes (right) or a gritted surface (left).