... 3) Cross carbide drill bitsFeatures:1) Cross carbide drill bits is made of quality alloy structured steel with special grade ... under the temperature of 850 degree.2)Application:concrete ,clinker,masonry,stone3)Flute available :W flute,U flute,L flute4) ... finish, black finish, Sandblasted finish. 6)We also offer drill bits set.. Packaging & DeliveryPackaging Detail:plastic tube,plastic hanger,PVC ...