Minimal wear on the tool post, little to no wear on all 3 tool holders. Four-way quick-change lathe tool posts hold four quick-change tool holders simultaneously. They have a handle that engages and disengages the locking mechanism that secures a toolholder to the tool post to make quick changes between operations.
For lathes with 14" to 17" swing. QITP35N-2 : Boring, Turning & Facing Tool Holder: 3/4" to 1" Capacity. QITP35N-4-1000-DUAL: Dual Heavy Duty Boring Bar Holder: 1 Capacity. Threading Tool Holder: Head #: TIH354-32, Insert #: TNGC-322.Tool Post Dimensions: 3-1/2" x 3-1/2" x 7-5/8 high. Comes exactly as shown in pictures.