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Small silver twist drill bit, size No 73, new condition

M.A. Ford

M.A. Ford Twister Micro-Tuff Drill No 73 30502400

SKU CH-46T1-X7R39

Twister Micro-Tuff Drill No 73 for precision drilling in hard materials

  • Twister Micro-Tuff design for precision drilling
  • Size No 73 suits micro-hole applications
  • M.A. Ford quality for reliable performance
  • California Prop 65 warning: contains carcinogenic chemical
  • California Prop 65 warning: contains reproductive-harm chemical

Micro-Tuff Drill No 73

The M.A. Ford Twister Micro-Tuff Drill No 73 is a precision cutting tool designed for micro-drilling tasks. It suits engineers and machinists who need reliable performance in small-diameter applications. The drill carries the manufacturer part number 30502400.

For micro-drilling only

This drill suits users creating very small holes in metals or composites. It is not for buyers who need larger hole diameters or heavy-duty structural drilling. The tool is also not for operators who require a drill without California Proposition 65 chemical warnings.

Size No 73 drill

The defining specification is the No 73 size designation which fixes the cutting diameter for micro-scale work. This single number determines whether the drill matches the required hole specification. Verify the size before ordering.

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

What size collet or chuck does the No 73 Twister Micro-Tuff Drill require for mounting?

The drill is a Number 73 wire-gauge size; it fits any standard drill chuck or pin-vise that accepts that diameter.

How is the 30502400 drill installed in a hand piece, and what step is often missed?

Insert the shank fully into the chuck jaws, tighten securely, and verify the drill runs true before starting; the step most often missed is checking for run-out after tightening.

When will the No 73 Micro-Tuff drill need replacement during regular use?

Replace the drill when the cutting lips show visible wear or the tool no longer produces clean holes in the material being drilled.

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