Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

Cobalt drill bits are are effective in drilling tough, high tensile strength materials. Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.