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Small metal twist drill bit, silver finish, size 66

M.A. Ford

M.A. Ford Twister Micro-Tuff Drill No 66 30503300

SKU CH-ZE6X-907D6

Twister Micro-Tuff Drill No 66 designed for precision drilling applications

  • Twister Micro-Tuff design enables precise micro-drilling
  • Size No 66 targets specific small-hole applications
  • M.A. Ford brand signals professional tool heritage
  • California Prop 65 warning informs safe handling practices
  • Manufacturer-direct shipping reduces transit touchpoints

M.A. Ford Twister Micro-Tuff Drill No 66

The M.A. Ford Twister Micro-Tuff Drill No 66 is a precision cutting tool designed for creating very small holes. It suits engineers and machinists who need accurate results in detailed metalworking tasks. The drill is supplied new and carries the manufacturer part number 30503300.

Buyers needing a No 66 micro drill

This drill fits users who require a specific No 66 size for micro-hole applications in a workshop or production setting. It is not for buyers who need larger diameter drills or different size designations for standard drilling jobs. The product carries a California Proposition 65 warning regarding chemicals known to cause cancer and reproductive harm.

Manufacturer part number 30503300 identifies this

The MPN 30503300 is the single specification that confirms you are ordering the correct M.A. Ford Twister Micro-Tuff Drill No 66. Verify this number against your technical drawings or bill of materials before purchase. Orders valued at 75 or more qualify for free shipping from the manufacturer.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 80% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameM.A. FORD

Questions about this item

How do I install the Twister Micro-Tuff Drill No 66 into my drill chuck and what step is often missed?

Insert the shank fully into the chuck, tighten securely on the flats if present, and verify concentricity before starting; the step often missed is not seating the shank completely, which causes run-out.

What maintenance or replacement will the No 66 drill need during its service life?

The drill is a consumable cutting tool; it will need resharpening or replacement once the cutting edges dull or chip, which is indicated by increased thrust force and poor hole finish.

What limit appears first on the No 66 drill during sustained high-speed drilling?

Heat buildup at the cutting edges is the first limit; excessive temperature accelerates wear and can anneal the substrate, so use peck cycles and appropriate coolant to manage it.

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