Construction Tools for 25 mm Rails


Construction Tools for 25 mm Rails

  • Customize 25mm Rails in Your Own Machine Shop
  • Drill Guide Helps Build Rigid, Square Corners
  • Taps and Tap Guide Make 1/4"-20 and M6-Threaded Holes


  • Customize Rails to Meet Exact Application Requirements
  • Drill Guide Helps Form Perfect Corners
  • Taps, Tap Guide, and Tap Wrench Put Threaded Holes in Custom Locations

 25 mm rails form the basis of lightweight, compact mechanical assemblies. In order to deploy these rails in the most demanding applications, we manufacture an assortment of construction tools that aid with "do-it-yourself" customization. These include a drill guide for making sturdy rail corners, a tap guide for making tapped holes on the rail ends, 1/4"-20 and M6 taps, and a tap wrench. Please see the Construction Methods tab for details on how these parts are used. For customers interested in machining and finishing their own rails, we offer a raw 25 mm rail extrusion.

our accessories for assemblies made of 25 mm rails include corner cubes and brackets, T-Nuts, low-profile channel screws, breadboard mounting accessories, and rail joiners. In addition, we offer optical enclosures, enclosure accessories, and "do-it-yourself" tools like taps, tap guides, and drill guides for home-built XE25-based constructions.

Drill Guide for 25 mm Rails


  • Positions a Drill Bit 12.5 mm from the End of a 25 mm Rail
  • Helps Build Sturdy, Square Corners

The XE25DG Drill Guide is specifically designed for the enclosure construction techniques detailed in the Construction Methods tab at the top of the page. It positions a drill bit 12.5 mm from the rail's end, thereby ensuring that the mated 25 mm rail forms a perfect corner.

A hardened bushing in the main block precisely aligns the drill guide along the rail channel and ensures that the drilled hole is perpendicular to the rail side. The main block slides along the rail until the hard stop is contacted. Once positioned, a built-in locking screw and T-Nut combination fastens the drill guide housing to the rail.


Tap Guide for 25 mm Rails


  • Tap 1/4"-20 or M6 Holes in Rail Ends
  • Hardened Bushing Ensures Tapped Hole and Rail are Parallel

The XE25TG Tap Guide aligns a tap such that the resulting tapped hole is parallel to the rail axis. A hardened bushing insert acts as a precise guide for the tap, and the bottom of the guide is designed to accept a rail end. Although it is specifically designed for use with 1/4"-20 and M6 taps, it can also be used with smaller taps.

The main cause of tap breakage is unwanted sideways motion when the operator attempts to rotate the tap while simultaneously applying a force not purely parallel to the drill axis. This device discourages this costly error.


Hand Tap Wrench


  • Create 1/4"-20 or M6 Tapped Holes by Hand
  • Accommodates Taps from #0 to 1/4" or 2 mm to 6 mm

This machinist-quality Hand Tap Wrench is ideally suited for everyday tapping requirements. The rugged stainless steel design provides durability and long life, and the crossbar conveniently slides to provide extra torque when required. The Hand Tap Wrench can accommodate taps as small as #0 or 2 mm and as large as 1/4" or 6 mm.


1/4"-20 and M6 Taps


  • ap Custom Holes in 25 mm Rails
  • 1/4"-20 and M6 Taps Available

These taps can be used in combination with the TW25 Hand Tap Wrench and XE25TG Tap Guide, both shown above, to customize our 25 mm rails. Thorlabs also offers a comprehensive selection of taps for many common threadings.



Our Mission is to accelerate the advancement of optical technology for precision measurements and their applications from the table tops of research laboratories to standard use in communication and high technology industries. Our aim is to serve our customers. Our hope is to create a place for highly skilled people in an open environment

contact us

Tel               +966 35823441
Fax               +966 35823441
Egypt Mobile  +2 0120 7577664
KSA Mobile     +966 545 991188
Email             CEO.Ehab@Aitc-group.com