Material: HSS Cobalt
Dia Size: 4.0mm-20mm
Min Quantity: 100PCS
Packaging: PVC Bag, Setcase, Plastic Box, Metal Box
Surface Finish: Tin Coated
Center drill bits can be used to make conical holes for a lathe center in order to make a starting point for a standard twist drill, designed to prevent the twist drill from walking, as well as for producing center holds in components or work pieces with require machining between centers.
Available for all Kinds of Materials: Metal, Alloy, Copper, Iron, Wood, Aluminum, and so on.
Durable and Resistance: Center drill bit is made of HSS high speed steel, with extremely sharp blade, low consumption and durable with impact resistance, wear resistance.
Center drills have flutes and cutting points on both ends. This allows the user with the ability to reverse the drill and utilize both ends.
Manufactured from M35 cobalt steel, for much faster cutting and extra longer life span when compared with an average HSS drill bit.
60 degree countersink angle fits all standard centers.
High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.

With material applications in mind, Shanghai Easydrill Industrial Co.,Ltd, long a leader in high speed steel, cobalt, and carbide drill bits for metal, features a complete line of drill bits and hole cutting solutions for metal, wood, concrete, masonry,glass and other surfaces. Drilling, hole cutting, reaming, countersinking, tapping, milling, sawing, and deburring are comprehensively covered with Easydrill.
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