What nut splitter sizes are available?

23/05/2022
Nut splitters are sized according to the nut sizes they are designed to split. This size can be given as either the measurement across the nuts flats, in either metric or imperial measurements, or the bolt size.

What does across flats mean?
 

Across flats (AF) in regard to nuts and bolts is the distance between the two opposite flat surfaces of a nut or bolt head. This distance can be measured in either imperial units (inches and fractions of inches) or metric (millimetres).
 
What nut sizes can be split?

Screw action nut splitters can be used on nuts as small as 4mm (5/32″) AF and large as 50mm (2″) AF. However, you would need several screw action nut splitters to cover this range of sizes, as a nut splitter designed to split a 4mm nut will only be capable of splitting nuts up to around 10mm.

 
 

If you need to split a large range of nut sizes then it might be best to purchase a set of nut splitters. These will usually include four to five nut splitters covering all of the most common sizes of nut.