Dear Manager : So glad to send email to you. Here ,recommend our Carbide Saw Tips for you . 1.We will recommend different grade for different application ,including wood working and metal working . 2.All our saw tips are adopt HIP sintering ,can better make sure its wear-resistance and life time . 3.From raw material to last finish products ,we will proceed inspection between 2 steps to avoid any unqualified products turn to next procedure . Best regards Anna Zhuzhou Apple carbide tools