Micro 100 DR-109-2 7/64" Carbide 118 Deg Jobber Drill Bit

Micro 100 Carbide Jobber Drill Bit

The Micro 100 DR-109-2 is a solid-carbide jobber-length drill bit manufactured for precision hole-making in ferrous and non-ferrous materials. Its 118-degree conventional point geometry provides reliable centering and chip evacuation in rigid machining setups. The bright uncoated finish suits general-purpose applications where coating buildup is undesirable. Professional machinists and maintenance technicians select this tool for repeatable accuracy in CNC and manual drilling operations.

7/64 inch diameter with .1094 decimal equivalent

The fractional 7/64 inch size corresponds to a .1094 decimal equivalent, fitting standard jobber-length tool holders and collets. Carbide construction delivers high wear resistance and rigidity, allowing higher cutting speeds than high-speed steel in abrasive or hardened workpieces. The bit performs consistently in production runs where dimensional stability is critical. It reaches its practical limit when machining deep holes without peck cycles or through-coolant capability, as the non-coolant-through design restricts chip removal at extended depths.

118-degree conventional point angle

The 118-degree point angle is the defining specification that determines suitability for a given material and machine rigidity. This geometry excels in short-chipping materials and rigid setups where self-centering is required without a pilot hole. It is not intended for high-helix or split-point applications that demand aggressive penetration in soft, gummy alloys. Buyers needing through-coolant delivery or specialized coating for high-temperature alloys should specify a different tool configuration.