Excel Spring & Stamping provides precision four-slide stampings to customers across North America, manufacturing tight tolerance components for a wide variety of applications. This brush holder project exemplifies that capability – composed of .025″ thick ¼ Hard C260 Brass; the brush holder featured close dimensions of .940″ – .960″ in length, and was formed to tolerances of ±.0015″.

After initial fabrication on our Nilson S2F four-slide machine, parts were then deburred using vibratory finishing. Finally, part chemistry and hardness are verified through testing in accordance with the ASTM B36 specification for brass standards. Statistical Process Control (SPC) sheets outlining our rigorous quality control methods were also included in shipment to the customer.

We have produced over 2,000,000 of these parts to date for our customer in Reynosa, Mexico. Due to the conveniently small size and relatively lightweight nature of many products we manufacture, FOB location is typically not a factor in our cost competitiveness.

At Excel Spring & Stamping, we take quality seriously. We operate an ISO 9001:2015 certified facility and maintain a comprehensive quality management system. For more information about this project or our four-slide stamping capabilities, please contact us directly.


Four Slide Stamping Project Highlights

Product Name

Brush Holder

Product Description

This commutator brush holder is used for an electric router.

Capabilities Applied/Processes

Four Slide Stamping

Vibratory Deburring

Equipment Used to Manufacture Part

Nilson S2F Fourslide

Overall Part Dimensions

Length: 0.940″ – 0.960″

Tightest Tolerances

± 0.005″

Material Used

C260 Brass ¼ Hard Temper per ASTM B36
Thickness: 0.025″

Material Finish


In process testing/inspection performed

Dimensional Inspection
SPC Charts with Shipment

Inspect Chemistry and Hardness to ASTM B36

Industry for Use

Woodworking Tools

Delivery Location


Standards Met

Customer Specifications, 2D CAD Drawing