M4*0.7 M5*0.8 M6*1 M8*1.25 HSS Extrusion Tap Titanium Plated Thread Forming Tap

grade

coated

introduction

KDG303

Coated

Ultra-fine carbide substrate with high strength,toughness 

and wear resistance, in combinationwith nano-structured 

nc-TiAlN coating aiming at optimizing drilling operations, 

makes sure the tools have very high toughness and hardness. 

Unique coating technology gives the tools smooth surface and 

excellent wear resistance, and outstanding thermal stability 

and chemical stability provide effective protection for the 

cutting edge.

YK20F

Uncoated

Ultra-fine grain carbide substrate with high hardness, 

outstanding wear resistance, and long tool life.

YK30F

Uncoated

Ultra-fine carbide substrate with high strength,toughness 

and wear resistance gives the cutting edge perfect strength.