Introduction special tools

In order to cope with special tasks, special tools are often required. We offer the production of special tools according to your specifications and special wishes, both in the reamer and milling cutter area and to round off our test gauge program.

Detailed descriptions of some examples can be found for selection in the menu on the left.

We are looking forward to your inquiry!

Finishing reamer with depth stop for caliber change from 7mm Rem Mag to 7mm STW
Wear gauge for tension profile
Finishing reamer for shotgun shell bearing with morse taper

Cartridge bearing reamers are also available with Morse taper shank as an option. The guide bush is replaceable and made of brass as standard. The dimensions of the standard finished reamer are 0.07mm above the minimum dimension according to CIP. This increases the service life and allows regrinding. It is advisable to pre-machine with the pre-machining reamer. Particular care is required when cutting the pre-machined contour, as the reamer cuts almost over the entire length.

Excessive retraction can lead to tool breakage. If narrow cartridge bearings are desired, use a finished reamer with minimum dimension. Guide bushings with grooves are optionally available if the barrel is flushed with coolant from the front. The reamers can optionally be provided with hard coatings.

Finishing reamer for shotgun shell bearing with morse taper
Finishing reamer for shotgun cartridge bearing with morse taper and extended shank

Cartridge bearing reamers are also available with Morse taper shank as an option.

The stock was additionally lengthened in order to be able to work on the cartridge chamber through the system case on self-loading or fore-end repeating shotguns. The guide bushing is interchangeable and made of brass as standard. The dimensions of the standard finished reamer are 0.07mm above the minimum dimension according to CIP. This increases the service life and enables regrinding. It is advisable to pre-machine with the pre-reamer.

Particular care is required when cutting the pre-machined contour, as the reamer cuts almost along its entire length. Excessive retraction can lead to tool breakage. If narrow cartridge bearings are required, a finished reamer with minimum dimensions should be used. Optional guide bushings with grooves are available if the barrel is flushed with coolant from the front. The reamers can optionally be provided with hard coatings.

Finishing reamer for shotgun cartridge bearing with morse taper and extended shank
Chokery reamer - fixed shape for shot cartridge bearing

This tool is used to change the choke bore for shot runs. The reamer has a cylindrical shank for clamping in the machine and a square for driving by hand. The guide bush is interchangeable and made of brass as standard. The choke reamer fixed form has a fixed maximum diameter, which depends on the bore diameter of the shot barrel.

The reamer is inserted into the barrel from the bearing side until the shaft emerges at the muzzle. After fastening the reamer, the taper of the choke is now changed in the direction of the muzzle by turning it in the cutting direction. This increases the muzzle diameter. The reamers can optionally be provided with hard coatings.

Chokery reamer fixed shape for shot cartridge bearing
Inline gauge for muzzle brakes

Accurate alignment is particularly important in a muzzle brake for safety and precision. The bore of the muzzle brake should be only slightly larger than the bullet in order to achieve the greatest possible effect. If the alignment is not exact, there is a risk that the bullet will graze the muzzle brake and be deflected.

Parts of the projectile can also separate and injure bystanders. The exact alignment can be checked safely and quickly with the inline gauge for muzzle brakes. An indispensable tool for gunsmiths, firing offices and shooters.

Inline gauge for muzzle brakes
Wear gauge for rifle cartridge bearing

In weapons that are loaded by many shots, the shooting performance deteriorates because the transition cone burns out. The wear gauge can be used to determine the degree of erosion and replace the barrel of the gun in a timely manner without the need for cumbersome and expensive precision tests. The sliding measuring cone is brought to the foremost position and the gauge is inserted into the cartridge chamber up to the reference surface.

The distance between the measuring cone and the gauge body, or between the (adjustable) gauge handle and the gauge body, indicates the extent of wear. The gauge is only manufactured in certain calibers.

Wear gauge for rifle cartridge bearing