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Riser Rocker Tool Post


SKU: 1288 Category:

Product Description

About the Riser-Rocker Tool Post

The riser tool post is used to bring the cutting tool back to lathe centerline height when using a riser block to raise the headstock to turn larger parts. This particular tool post has a convenient “rocker” design that allows adjustment of the tooltip height.

The cutting edge of a lathe tool should be set right on or just slightly below the centerline of the part being machined. With new lathe tools, this is not a problem because Sherline tool posts are made to hold them at the correct height. Older tools that have been sharpened numerous times may require shimming to bring them up to the correct height. The Sherline rocker tool post is designed to eliminate the need for shimming. The height of the cutting edge can be changed by simply adjusting the two clamping screws. This inexpensive accessory reduces setup time and also extends the life and usefulness of your old lathe tools.

If you wish to purchase both the riser block and the riser-rocker tool post as a package, see the P/N 1291 headstock spacer block kit.


The improper use of machine tools and their accessories can result in serious injury. Before using this tool, thoroughly read the instructions and make sure you understand its proper and safe use.


Always wear safety glasses when operating machine tools.

Download PDF 1291 Instructions

Instructions PDF Download

Riser Rocker Tool Post
Tool Post Body Material Aluminum
Body Coating Black Anodized
Body Dimensions (H x W X D) 2.75″ x 1.25″ x 1.25″
Rocker Center Material Aluminum
Part No. Description Quantity
11990 Rocker Tool Post Rocker Center 1
12850 Riser Rocker Tool Post Body 1
12860 10-32 x 2-1/4″ SHC Screw 1
40250 Tool Post T-Nut 1
40330 10-32 x 5/8″ SHC Screw 2
40660 #10 Washer 3/16 1
40690 10-32 x 3/4″ SHC Screws 2