Compound Slide

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Product Description

The compound slide offers a way to turn tapers and cut angles on a lathe without rotating the headstock. Four mounting holes are in the base for solid positioning on the crosslide. The base has a red anodized finish with laser engraved angle scales to make setting an angle easy. It utilizes a highly efficient locking ring design to lock it in position without having to overtighten the locking screws. A 1/4″ cutting tool can be mounted across the front or on either side of the head.

NOTE: Our 3/8″ shank, insert tool holders will not work with the compound slide.

Unlike compounds used on full-size, conventional lathes, this one was designed to be used from the “back” side of the table. This setup allows it to be designed in a more compact size and used without interference from the crosslide handwheel. The lathe tool is inserted in the holder “upside down” so the cutting tip faces downward. Because of the small size of the miniature lathe, operating the crosslide handwheel in this position is just as convenient.

A Compound Riser Block is available for use with this item (see below).

Travel of the slide block is up to 1.75″ when square to the base or angled slightly. When angled 45° the handwheel will hit the corner of the base, shortening travel to about 1.25″. At angles between about 20° and 45° travel is restricted between the two dimensions depending on the angle.

The Sherline compound slide is available in both inch and metric versions. On the inch version, the handwheel is calibrated in .001″ increments driving a 20 TPI leadscrew. On the metric version, the handwheel is calibrated in .01 mm increments driving a 1 mm pitch leadscrew. The inch handwheels have 50 marks (one revolution = 0.050″). The metric handwheels have 100 marks (one revolution = 1.0 mm).

1270_demoThe compound slide offers another way to cut tapers. The slide is used on the “back” side of the table with the tool upside down.

Thread, Gear, and Angle Calculators Available

Pete Johnson created a taper offset calculator to determine the angle for the P/N 1270 Compound Slide. It is an Excel spreadsheet in .zip file format for downloading purposes. CLICK HERE to download Pete’s taper calculator file.

You can also visit our Calculators web page to download or link to a selection of other calculators developed to help you with gear and thread calculations. They are in the form of Excel or Google spreadsheets. (Microsoft® Excel or Google® account required to open and use.)

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 1270 Instructions

Instructions PDF Download

Download PDF Tip 92-Cutting Threads with the Sherline Compound Slide

Instructions PDF Download

Specs listed for main components only
Compound Slide Toolpost 6061 T6 Black Anodized Aluminum
Compound Rotating Base 6061 T6 Red Anodized Aluminum and 12L14 Steel
Compound Gib 12L14 Steel
Y-Axis Handwheel 6061 T6 Black Anodized Aluminum
Compound Slide Screw 12L14 Steel
Compound Nut Brass
10850 (4) 10-32 x 1/4″ SKT HD Cap Screw
12710 (2) 5-40 x 3/16″ SKT HD Cap Screw
12720 Compound Base – Lasered
12730 Compound Rotating Base
12740 Compound Nut
12750 Compound Ring
12760 Compound Slide and Toolpost
12770 Compound Gib
12780 Compound Slide Screw
30561 (4) 10-32 Tee Nut
40050 Y-Axis Handwheel (crosslide)
40280 Thrust Collar
40530 (4) 5-40 x 3/8″ SKT HD Cap Screw
40670 (4) 10-32 x 1/2″ SKT HD Cap Screw


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Domestic orders are shipped Monday – Friday. Expedited orders must be placed by 9 am PST to ship the same day.

Orders shipping ground have a processing time of 7 working days for domestic orders and 14 working days for international orders. Click here for more information on our shipping and order policies.


Most merchandise can be returned within 30 day of the purchase date. A refund will be issued to the original form of payment at the original selling price. View our complete return policy and/or start your return online here.