Drill Bits Unlimted
.0180"–.0472" 100 Pc Carbide Drill Bit Set | 10 Sizes, 1/8" Shank | A3
.0180"–.0472" 100 Pc Carbide Drill Bit Set | 10 Sizes, 1/8" Shank | A3
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.0180"–.0472" 100 Pc Carbide Drill Bit Set
This 100-piece carbide drill bit set includes 10 drills each of 10 useful small drill sizes, covering sizes from .0180" to .0472". It is a practical bulk assortment for PCB work, electronics, model making, hobby work, precision drilling, and small-hole applications where having multiple drills in each size is helpful.
Each drill has a standard 1/8" shank and 1.50" overall length. These carbide drills should be used with good spindle alignment, minimal runout, and controlled feed pressure to help reduce breakage.
Brand / Seller: Drill Bits Unlimited
Set Number: A3
Available Conditions: Factory Resharpened or Lightly Used
Condition Options
- Factory Resharpened Drills: Professionally resharpened and inspected, offering performance comparable to new drills at a lower cost.
- Lightly Used Drills: Lower-cost option for hobby, prototype, repair, and light production drilling work.
Factory Resharpened Solid Carbide Value
Factory resharpened solid carbide drills offer performance comparable to new drills at a lower cost. These professional-grade micro drills have standard 1/8" shanks and are intended for stable, accurate drilling setups where rigidity and precision matter.
Included Sizes
10 pieces each of the following 10 sizes:
| Qty. | Size, Inch | Metric / Wire Gauge Equivalent |
|---|---|---|
| 10 | .0180" | 0.45mm / #77 |
| 10 | .0240" | 0.60mm / #73 |
| 10 | .0260" | 0.65mm / #71 |
| 10 | .0320" | 0.80mm / #67 |
| 10 | .0330" | 0.85mm / #66 |
| 10 | .0360" | #64 |
| 10 | .0370" | 0.95mm / #63 |
| 10 | .0430" | 1.10mm / #57 |
| 10 | .0453" | 1.15mm |
| 10 | .0472" | 3/64" / 1.20mm |
Typical Applications
- PCB drilling and electronics work
- Precision CNC drilling
- Model making, hobby, and miniature work
- Jewelry, craft, and fine-detail drilling
- Repair shops, labs, and maintenance departments
- Small-hole drilling in plastics, composites, and non-ferrous materials
- Fine orifice, jet, and micro-hole work where multiple drills per size are useful
Specifications
| Product Type | Carbide Micro Drill Bit Set |
| Available Conditions | Factory Resharpened, Lightly Used |
| Material | Solid Carbide |
| Included Drill Diameters | .0180"–.0472" |
| Piece Count | 100 Pieces |
| Size Count | 10 Sizes |
| Quantity Per Size | 10 Pieces Each |
| Shank Diameter | 1/8" |
| Overall Length | 1.50" |
| Finish / Coating | Bright / Uncoated |
Note: Carbide drills are hard and wear-resistant, but brittle. Use steady alignment, minimal runout, and controlled feed pressure.
Flute length note: Please allow up to .050" flute length variance.
Image note: Product photo is representative. Drill collar colors and markings may vary.
👉 View Carbide Drill Bit Feed & Speed Starting Guide
Looking for individual sizes instead?
Need a specific drill size or want to choose your own quantities? View our full selection of individual carbide drill bit sizes here:
Looking for a different drill set?
Browse our other carbide drill variety sets, including incremental size sets, metric sets, larger assortments, fractional inch sets, and carburetor jet tuning sets.
Returns
Returns
Returns are accepted within 30 days of delivery for unused items in resalable condition. Original shipping charges are non-refundable unless the return is due to our error. Late, bulk, used, clearance, or special-order returns may be limited or subject to approval. See our Refund Policy for full details.
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