Widin Carbide Drills Solid 3xD AlTiN Coated - 3.1mm Insert UNJEF and UNJS external thread

UNJEF and UNJS external thread standards

and DIY metalworkers who encounter reverse-threaded components or assemblies that require controlled disengagement

The DIN 212-B specification and ISO H5 tolerance support precise hole diameters and a smooth reaming finish

With the combination of stability

Precise M90 x 1

Widin Carbide Drills Solid 3xD AlTiN Coated - 3.1mm Insert UNJEF and UNJS external threadWidin Carbide Drills Solid 3xD AlTiN Coated 3. 1mm is a high performance drill designed for demanding metalworking tasks. Featuring a solid carbide core for exceptional hardness and a durable AlTiN coating, this drill delivers long tool life and consistent cuts, even under heat and friction. Its 3xD length provides the right balance of rigidity and reach, making it suitable for a wide range of drilling depths. Solid carbide core with AlTiN coating: