Micro 100
Micro 100 DR-109-2 7/64" Carbide 118 Deg Jobber Drill Bit
Carbide jobber drill bit with a 118-degree conventional point for 7/64 inch holes
- 7/64 inch diameter for precise small-hole drilling
- 118 degree point angle centres quickly on hard materials
- Solid carbide construction resists wear in abrasive alloys
- Bright uncoated finish avoids coating buildup in sticky metals
- Jobber length gives standard reach for general workshop use
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.
Highlights
- 7/64 inch diameter for precise small-hole drilling
- 118 degree point angle centres quickly on hard materials
- Solid carbide construction resists wear in abrasive alloys
- Bright uncoated finish avoids coating buildup in sticky metals
- Jobber length gives standard reach for general workshop use
Specifications
| Brand | MICRO 100 |
|---|
Questions about this item
Will the 118-degree point on this 7/64" carbide bit work well with my older drill press that runs at lower RPMs?
The conventional 118-degree point is designed for general-purpose drilling and performs reliably on standard drill presses, including older models operating at typical jobber-length speeds.
How can I verify the bit is cutting correctly after installing it in my chuck?
Check that the bit runs true with minimal wobble, then drill a test hole; a clean, round hole at the 0.1094-inch decimal equivalent with consistent chip formation indicates proper operation.
Does the DR-109-2 come with any coating or coolant accessories, or must I supply those separately?
The bit is supplied bright and uncoated with no coolant-through feature; any cutting fluid or coating service would need to be sourced separately.
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