Qualtech DWD115J-CO-SET #1-60, A-Z & 1/16-1/2x64ths 115 Piece Cobalt Drill Bit Set

Drill America cobalt drill bits are manufactured to National Aerospace standard 907. These drill bits display high red hardness, permitting speeds up to 30% greater, and are especially effective in drilling tough, high tensile strength materials like , inconel, and titanium. The 135 split point is self-centering and reduces thrust.