Avoid using 2½” wheels on lathe leadscrew and tailstock
Choose inch or metric versions for precision
Install 2½” wheels with ball thrust for Z-axis
The Sherline Resettable Handwheel Instructions provide guidance on upgrading miniature machine tools with the capability to reset the handwheel to "zero" or any desired setting during machining operations. This feature, commonly found in full-size machine tools, is now accessible for Sherline's compact models. The installation process is straightforward, requiring only the release of a set screw to replace the standard handwheels. The operation involves releasing a locking nut, adjusting the red handwheel collar to "zero," and retightening the nut, allowing precise control over the feed amount without complex calculations.
The instructions detail the compatibility of various handwheel sizes, noting that standard 1⅝” handwheels can be upgraded to 2” adjustable versions. However, caution is advised against using larger 2½” handwheels on both the lathe leadscrew and tailstock simultaneously due to potential interference, though they are suitable for other applications. Both inch and metric versions are available to accommodate different measurement preferences.
Additionally, a specialized 2½” diameter handwheel is designed for the Z-axis of the mill or vertical milling column, featuring a ball thrust bearing set to alleviate stress from the vertical lifting action. This component is standard on newer machines, while older models can be retrofitted with this upgrade. The engraved numbers on the collars are oriented for optimal readability depending on the axis of installation, ensuring ease of use across different machine configurations.
All standard 1⅝” handwheels can be replaced with 2″ adjustable handwheels
Larger 2½” handwheels are not recommended for use on both the lathe leadscrew and tailstock together due to interference but can be used elsewhere
Both inch and metric versions are available
A special 2½” diameter handwheel is available for the Z-axis of the mill or vertical milling column
Newer machines come with this special 2½” handwheel, which includes a ball thrust bearing set to relieve stress from the lifting action of the vertical Z-axis
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A $100 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".
