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Small cylindrical drill bit, silver metal finish, size No 21

M.A. Ford

M.A. Ford 30615900 Twister Circuit Board Drill No 21

SKU CH-1HBD-HRG44

Drills precise holes in circuit boards using size No 21 Twister geometry

  • M.A. Ford Twister drill for circuit board work
  • Size No 21 matches specific hole requirements
  • Model 30615900 identifies the exact tool
  • New condition ensures full cutting performance
  • California Proposition 65 chemical warning applies

M.A. Ford Twister Circuit Board Drill No 21

The M.A. Ford 30615900 Twister is a large-size circuit board drill designed for precision drilling in printed circuit board materials. It is intended for technicians and engineers who fabricate or repair boards in professional electronics workshops. The tool is supplied new and carries California Proposition 65 warnings for substances linked to cancer and reproductive harm.

Who this suits and who should look elsewhere

This drill suits users who need a dedicated No 21 tool for standard circuit board substrates in a production or lab environment. Buyers who require a different drill diameter, a smaller shank size, or a complete assortment of sizes should look at other options because this listing covers only the single No 21 variant.

Specification that decides fit

The decisive specification is the drill size designation No 21, which fixes the cutting diameter for the intended board material. Confirm that your equipment and artwork call for exactly this size before ordering, as no other diameters are included in this package.

How it compares

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

Price $17.99
Cheaper than about 68% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameM.A. FORD

Questions about this item

What does the No 21 designation indicate for this circuit board drill?

No 21 identifies the specific size of this Twister large size drill for circuit board work.

What does the California Proposition 65 warning on this drill mean for the user?

The drill contains a chemical known to the State of California to cause cancer and reproductive harm.

What shank style does the 30615900 Twister drill use for mounting in a tool?

The drill uses a standard straight shank that fits common drill chucks and collets.

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