Laydown Threading Toolholders

In all cases, the proper shim selection is important. WIDIA™ toolholders are supplied with a shim for a 1,5° lead angle. Change the shim if your thread is more than 1° different. For more details on proper shim selections, see pages F100–F101.

insert screw clamp assembly

insert insert

shim shim

shim screw shim screw

insert size and screwinsert screwshimshim screw and washerclamp assembly
3ERS-SA3TSM-YIE3S-SY3TCK-C3
3ELS-SA3TSM-YI3S-SY3TCK-C3
4ERS-SA4TSM-YIE4S-SY4TCK-C4
4ELS-SA4TSM-YI4S-SY4TCK-C4
Laydown Threading boring bars
2IRS-SN2T
2ILS-SN2T
3IRS-SA3TSM-YI3S-SY3TCK-C3
3ILS-SA3TSM-YIE3S-SY3TCK-C3
4IRS-SA4TSM-YI4S-SY4TCK-C4
4ILS-SA4TSM-YIE4S-SY4TCK-C4
SMY E3 2N

Shim Y-shim for E — External iC — 16mm Shim Angle

Laydown I — Internal standard inserts

2P 2º positive 1P 1º positive — 0º 1N 1º negative 2N 2º negative 3N 3º negative