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Silver cylindrical twist drill bit with three spiral flutes and a pointed tip

M.A. Ford

M.A. Ford Twister Al 5X 3 Flute Drill 21/64 22932810

SKU CH-RYQ7-4J55Z

A 21/64 inch three-flute drill designed for aluminium, 5x diameter depth, new condition

  • Designed for aluminium with Twister Al geometry
  • Three flutes improve chip evacuation in soft metals
  • 5× diameter reach for deeper holes in one pass
  • 21/64 inch diameter suits precise fractional sizing
  • New condition ensures full factory performance

21/64 Twister Al 5X Drill

The M.A. Ford Twister Al 5X is a 3-flute drill bit sized at 21/64 inch for precision holemaking in aluminium and similar non-ferrous materials. It is intended for machinists and fabricators who need accurate diameters and clean chip evacuation in softer alloys.

Thermals noise and power

As a non-powered cutting accessory the drill generates no electrical noise or power draw of its own. Heat produced during cutting depends entirely on the machine tool spindle speed feed rate and coolant strategy chosen by the operator.

21/64 diameter fit

The single specification that decides suitability is the 21/64 inch cutting diameter; the tool will not produce any other hole size. Buyers who need a different diameter or a flute count optimised for steel or composite materials must select another part.

How it compares

Measured against everything we stock in Power Drills, Drivers & Cutting Bits, at today’s prices. Recalculated every night.

Price $101.99
Pricier than about 57% of the 2,412 comparable items (median $81.99).

Specifications

Product
Brand nameM.A. FORD

Questions about this item

How is the 21/64 Twister Al 5X 3 Flute Drill installed in a drill chuck, and what step is often missed?

Insert the shank fully into the chuck, tighten securely with the chuck key, then verify the bit runs true before starting; skipping the run-out check causes wandering holes.

What maintenance or replacement will the 22932810 drill need over time?

The three cutting edges dull with use; resharpen on a drill sharpener or replace the bit when feed force increases or hole quality drops.

What limit appears first on the Twister Al 5X during sustained drilling in aluminium?

Heat builds in the flutes during long cuts, reducing edge life; use peck cycles and coolant to manage temperature and avoid premature wear.

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