---
product_id: 12751024
title: "PSI Woodworking L5818 Lathe Spindle Adapter 5/8\" Shopsmith to 1\" x 8tpi | Lathe Headstock Woodturning Accessory"
brand: "psi woodworking"
price: "$52.72"
currency: USD
in_stock: true
category: "Psi Woodworking"
url: https://www.desertcart.us/products/12751024-psi-woodworking-l5818-lathe-spindle-adapter-5-8-shopsmith-to
store_origin: US
region: United States of America
---

# Set screw & wrench flats for secure fit 1" x 8tpi threaded adapter Steel construction for durability PSI Woodworking L5818 Lathe Spindle Adapter 5/8" Shopsmith to 1" x 8tpi | Lathe Headstock Woodturning Accessory

**Brand:** psi woodworking
**Price:** $52.72
**Availability:** ✅ In Stock

## Summary

> 🔩 Upgrade your lathe game — thread into precision and power!

## Quick Answers

- **What is this?** PSI Woodworking L5818 Lathe Spindle Adapter 5/8" Shopsmith to 1" x 8tpi | Lathe Headstock Woodturning Accessory by psi woodworking
- **How much does it cost?** $52.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/12751024-psi-woodworking-l5818-lathe-spindle-adapter-5-8-shopsmith-to)

## Best For

- psi woodworking enthusiasts

## Why This Product

- Trusted psi woodworking brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from robust steel, ensuring long-lasting performance under heavy use.
- • **Extended Reach:** Adds over 1¼" spindle length, expanding your tool compatibility and turning possibilities.
- • **Trusted by Pros:** Backed by a 2-year warranty and a 4.7-star rating from over 2,000 woodworkers.
- • **Precision Fit & Lock:** Includes a set screw and wrench flats for a rock-solid, slip-free connection every time.
- • **Universal Thread Upgrade:** Transforms your 5/8" Shopsmith spindle to accept 1" x 8tpi threaded accessories effortlessly.

## Overview

The PSI Woodworking L5818 Lathe Spindle Adapter converts a 5/8" non-threaded Shopsmith lathe spindle to a 1" x 8tpi threaded mount, enabling compatibility with a wide range of chucks and accessories. Made from durable steel, it extends spindle length by approximately 1¼", features a set screw for secure locking, and wrench flats for easy tightening. Ideal for professional woodturners seeking enhanced versatility and reliability.

## Description

Product Description Converts your Shop Smith lathe spindle so that you can use chucks with a 1" x 8 tpi thread size. Adapts to your 5/8-inch no thread spindle to accomodate any 1" x 8 tpi female mount accessory. Made of steel, and has set screw to tighten to the flat on the spindle. Extends the spindle length over 1-inch. From the Manufacturer Converts your lathe spindle so that you can use a chuck with a different thread size

## Features

- Convert a Shopsmith 5/8" non-threaded lathe headstock spindle to 1" x 8tpi threaded
- Allows a 5/8" non-threaded spindle to accept 1" x 8tpi threaded chucks, faceplates, and other woodturning tools and accessories
- Made of steel; Weighs .65 pounds; Extends spindle length approximately 1-1/4"
- Includes set screw to lock the adapter to the spindle
- Flats allow for solid wrench tool grip for tightening and loosening from spindle; Wrench not included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000KIEC88 |
| Best Sellers Rank | #322,842 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #191 in Power Lathe Accessories |
| Brand Name | PSI Woodworking |
| Capacity | 1 inches |
| Compatible Devices | Drilling Machine, Grinding Lathe, Milling Machine |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,075) |
| Global Trade Identification Number | 00689076537698 |
| Handle Type | wrench |
| Included Components | Spindle Adapter |
| Item Diameter | 1 inches |
| Item Type Name | spindle adapter |
| Lock Type | Set Screw |
| Manufacturer | PSI Woodworking |
| Manufacturer Part Number | L5818 |
| Manufacturer Warranty Description | 2 Years Under Normal Use |
| Material Type | Steel |
| Model Number | L5818 |
| Thread Size | 1 x 8tpi |
| UPC | 689076537698 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** PSI Woodworking
- **Compatible Devices:** Drilling Machine, Grinding Lathe, Milling Machine
- **Item Diameter:** 1 inches
- **Material:** Steel
- **Thread Size:** 1 x 8tpi

## Images

![PSI Woodworking L5818 Lathe Spindle Adapter 5/8" Shopsmith to 1" x 8tpi | Lathe Headstock Woodturning Accessory - Image 1](https://m.media-amazon.com/images/I/616VyE1pssL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- PSI Woodworking L5818 Lathe Headstock Spindle Adapter 5/8" Shopsmith to 1" x 8tpi
- VINWOX SCR4-4 Wood Lathe Chuck, 4-Jaw Self-Centering Chuck, with 1"x8TPI thread & 3/4"x16TPI Adapter
- PSI Woodworking TM42 Headstock Mount Lathe Drill Chuck

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-02*