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Drill Bits Unlimited

.0160"–.0225" / #78–#74 Carbide Drill Bit Set – 1/8" Shank – 10 Pc – S3

.0160"–.0225" / #78–#74 Carbide Drill Bit Set – 1/8" Shank – 10 Pc – S3

Regular price $24.90 USD
Regular price Sale price $24.90 USD
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Quantity

This S3 carbide drill bit set includes ten small solid carbide drill bits in five useful micro sizes, ranging from .0160" to .0225" / #78 to #74. The set includes two pieces of each size, making it a practical small-drill-bit assortment for precision work, PCB drilling, model work, carburetor jet work, and other delicate drilling applications.

Choose new, lightly used, or factory resharpened drill bits using the condition selector. These are solid carbide drill bits with 1/8" shanks and 1.50" overall length. Flute lengths are .220" minimum.

The two-pieces-per-size format gives you a backup drill bit in each size, which is helpful with very small carbide drill bits that can be fragile if pushed too hard, misaligned, or used in an unstable setup.

Included Sizes

Quantity Size Decimal Inch Metric Size
2 #78 .0160" 0.40mm
2 #77 .0180" 0.45mm
2 #76 .0200" 0.50mm
2 #75 .0210" approx. 0.53mm
2 #74 .0225" approx. 0.57mm

Condition Options

  • New: Unused solid carbide drill bits.
  • Lightly Used: Previously used drill bits that remain useful for hobby, prototype, shop, and general precision drilling work.
  • Factory Resharpened: Professionally reconditioned drill bits that offer excellent value compared with new tools.

Typical Applications

  • PCB drilling and circuit board work
  • Carburetor jet sizing and tuning work
  • Model making and hobby drilling
  • Small precision holes in plastics, wood, and soft non-ferrous materials
  • Prototype work, electronics work, and delicate shop drilling

Benefits

  • Ten-piece set with two drill bits each in five small sizes
  • Includes useful micro sizes from #78 to #74
  • Available as new, lightly used, or factory resharpened drill bits
  • Solid carbide construction for precision drilling
  • 1/8" shanks fit many drill chucks, collets, pin vises, and small-tool holders
  • 1.50" overall length for convenient handling and setup
  • Flute lengths are .220" minimum
  • Good value compared with buying each size separately

Specifications

Tool Type Carbide Drill Bit Set
Set / Part Number S3
Condition Options New, Lightly Used, or Factory Resharpened
Total Pieces 10
Number of Sizes 5
Quantity Per Size 2
Size Range .0160"–.0225" / #78–#74 / 0.40–0.57mm approx.
Material Solid Carbide
Shank Diameter 1/8" / 3.175mm
Overall Length 1.50"
Flute Length .220" minimum

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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:

Shop individual carbide drill bit sizes

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.

View all carbide drill variety sets

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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