HSS(M4) THROW AWAY DRILL INSERT TIALN-COATED
HSS(M4) THROW-AWAY DRILL INSERT HARDSLICK COATED
SUPER HSS(T15) THROW AWAY DRILL INSERT TIN-COATED
SUPER HSS(T15) THROW-AWAY DRILL INSERT TIALN COATED
SUPER HSS(T15) THROW-AWAY DRILL INSERT HARDSLICK COATED