#28 x 12" Cobalt Aircraft Extension Drill Bit Shopify Collective Tekton 4 mm Bit Sets

Tekton 4 mm Bit Sets are ideal for small electronics

The hammer has an induction-hardened steel face on one side and a replaceable chip-resistant nylon insert with 73 Shore D hardness on the other side

Part Number: M12X80DPOSAPL

Part Number DMOD55

Length Under Head: 75MM

#28 x 12" Cobalt Aircraft Extension Drill Bit Shopify Collective Tekton 4 mm Bit SetsProduct 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