WYBUR Tools 1-877-276-4787
Menu

Precision Carbide Burs
(Rotary Files or Die Grinder Bits)

Grobet USA Manufacturing has been producing premium quality high-speed steel and carbide burs for specialized technicians and craftsmen for over 50 years. Acquired by Designatronics Inc. and rebranded as WYBUR Tools, August 2022, the Cheyenne, Wyoming facility will continue to provide the high quality, reliable products customers depend on.

Brand new name! Same great quality! Same facility, equipment, and experienced technicians! Improved capacity and delivery!

Our premium quality burs are 100% made in the USA and go through a rigorous inspection and quality control process. Our burs are used in a variety of markets including the jewelry, lapidary, manufacturing, dental, fabrication, optical, and ship building industries. Our precision rotary tools are the preferred choice because our burs cut faster, more precise, and with less waste.


Profiles

Cylindrical, Plain End

CYLINDRICAL

Plain End, Burs
Cylindrical, End Cut

CYLINDRICAL

End Cut, Burs
Cylindrical, Radius End

CYLINDRICAL

Radius End, Burs
Cone, Radius End

CONICAL

Radius End, Burs
Cone Type

CONICAL

Burs

Inverted Cone, Plain End

INVERTED CONE

Plain End, Burs
Inverted Cone, End Cut

INVERTED CONE

End Cut, Burs
Ball Type Burs

BALL

Burs
Oval Type Burs

OVAL

Burs
Tree Type Burs, Radius End

TREE

Radius End, Burs
Tree Type Burs, Pointed End

TREE

Pointed End, Burs
Flame Type Burs

FLAME

Burs
Deburring Burs

DEBURRING

Burs
Cuts



Double Cut Burs

DOUBLE CUT BURS

Our most popular cut profile. Basically a standard cut tool, with cuts performed along the left-hand spiral. The design results in a finer finish on materials, smaller shavings and slivers, and greater tool control.
Double Cut Burs

STANDARD CUT BURS

General purpose, used to deburr steel, cast iron, and other ferrous materials.
Double Cut Burs

BEAR CUT BURS

Developed to significantly reduce manufacturing production costs. The bear cut removes more material per hour. The overall design and cut is developed for heavy-duty applications, with wider teeth to produce longer chips which disintegrate easier. The tooth profile reduces their propensity to accumulate.
Aluma Cut Burs

ALUMA CUT BURS

This bur design provides easy chip flow and faster material removal with little to no clogging. Can be used on aluminum, magnesium, soft steel, hard plastic, rubber, and wood.
Chip Breaker Cut Burs

CHIP BREAKER CUT BURS

Standard cut with chipbreaker. Used for tempered, unhardened steel, cast steel and weld seams.
Fine Cut Burs

FINE CUT BURS

The fine cut bur is used in jewelry making