... TIP, standard flute, Cross TIP, double flutes S4 type , Three-Tip standard flute, Three-Tip double flutes HAMMER DRILL BIT SET3pcs SDS-Plus ... /65 DCEstandard Tip, standard flute,standard Tip, double flutes S4 type Cross TIP, standard flute, Cross TIP, double flutes S4 ... type ,SQUARE HAMMER DRILL BITMachined from chrome steel fitted with carbide ...