.120″–.1949″Micro Carbide Drill Bits (.120″–.1949″) – Choose Individual Size – PCB & CNC – 1/8" Shank CD4

Key Specifications

• Material: Solid Carbide
• Shank Diameter: 1/8" (3.175 mm)
• Overall Length: 1.50"
• Cutting Diameter: Selected size
• Depth Stop Rings: Included unless specified

Suitable for precision micro-drilling in PCBs, plastics, composites, and thin metals.

Condition & Length Notes:

• New: Factory-new drills
• R/S: Factory resharpened drills
• FL: Standard flute length (maximum plunge depth)
• STUB: Short flute length for increased rigidity and reduced breakage

Looking for individual sizes outside this range?
Carbide Drill Bits — Choose Your Size

Looking for a range of drill sizes instead?
 View our incremental size drill sets

Available Carbide Drill Diameters in This Range (.120"–.1949")

#31 (0.120" / 3.05mm), (0.122" / 3.10mm), (0.124" / 3.15mm), (0.125" / 3.17mm), (0.1260" / 3.20mm), (0.128" / 3.25mm), #30 (0.1285" / 3.26mm), (0.1299" / 3.30mm), (0.1319" / 3.35mm), (0.1339" / 3.40mm), #29 (0.1360" / 3.45mm), (0.1378" / 3.50mm), (0.1398" / 3.55mm), #28 (0.1405" / 3.57mm), (0.1417" / 3.60mm), #27 (0.1440" / 3.66mm), (0.1457" / 3.70mm), #26 (0.1470" / 3.73mm), (0.1476" / 3.75mm), #25 (0.1495" / 3.80mm), (0.1516" / 3.85mm), #24 (0.1520" / 3.86mm), (0.1535" / 3.90mm), (0.1555" / 3.95mm), #23 (0.1540" / 3.91mm), (0.1575" / 4.00mm), #22 (0.1570" / 3.99mm), (0.1598" / 4.06mm), #21 (0.1590" / 4.04mm), (0.1614" / 4.10mm), #20 (0.1610" / 4.09mm), (0.1654" / 4.20mm), #19 (0.1660" / 4.22mm), (0.1693" / 4.30mm), #18 (0.1695" / 4.31mm), (0.1732" / 4.40mm), #17 (0.1730" / 4.39mm), (0.1772" / 4.50mm), #16 (0.1770" / 4.50mm), (0.1811" / 4.60mm), #15 (0.1800" / 4.57mm), (0.1850" / 4.70mm), #14 (0.1820" / 4.62mm), (0.1890" / 4.80mm), #13 (0.1850" / 4.70mm), (0.1929" / 4.90mm), #12 (0.1890" / 4.80mm), (0.1949" / 4.95mm)

All drills feature a 1/8" (3.175mm) shank. Flute length varies by option — see dropdown selector above.