5/16" x 12" Cobalt Aircraft Extension Drill Bit Shopify Collective Extra length dills are for

Extra length dills are for general purpose drilling in applications where extra length is required for reach

Part Number: BIT-DMS73-2140

Part Number: Assortment Kit #182375 Pieces - M6 & M8 Coarse

Size 1-1/8"-7

Height: 32-3/4"

5/16" x 12" Cobalt Aircraft Extension Drill Bit Shopify Collective Extra length dills are forProduct Description Cobalt drill bits are are effective in drilling tough, high tensile strength materials such as cast iron, inconel, stainless steel and titanium. They display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel. They have a 135 split point tip for fast penetration and accurate drilling. Compared to a conventional 118 degree tip, these drills wont go "walking" on you. Ideal for drilling