2Pcs Set MT3 MT4 LATHE ALIGNMENT TEST BAR Mandrel 3MT 4MT EN31Alloy Heavy

Description

MT3 Lathe alignment test bar
:Shank size - mt 3
:Re-align the tail-stock on your lathe to eliminate that slight taper  when turning over a long distance.
:Manufactured from en31 alloy steel.
:Useful for alignment test between centers as well as in morse taper  spindles
:Accuracy within 1-2 micron. Max.run-out :0.0001". Overall length :  335mm (13-3/16")
Description
Lathe alignment test bar
:Shank size - mt 4
:Re-align the tail-stock on your lathe to eliminate that slight taper  when turning over a long distance.
:Manufactured from en31 alloy steel.
:Useful for alignment test between centers as well as in morse taper  spindles
:Accurate. Max.run-out :0.0001". Overall length :
15-1/4" 385mm
These are heavy bars unlike some sellers selling cheap light bars.