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Tiny 0.42 mm Twister Micro-Tuff drill bit, silver metal finish

M.A. Ford

M.A. Ford Twister Micro-Tuff Drill 0.42 mm 305M0042

SKU CH-Q9B1-63M95

Drills 0.42 mm holes using Micro-Tuff design for precision work in tight spaces

  • Micro-Tuff geometry resists breakage in micro-drilling
  • 42 mm diameter suits precision hole-making
  • Twister flute design improves chip evacuation
  • M.A. Ford brand backs professional tool quality
  • California Prop 65 warning informs safe handling

Micro-Tuff Drill 0.42 mm

The M.A. Ford Twister Micro-Tuff Drill 0.42 mm is a precision cutting tool designed for detailed drilling tasks. It suits machinists, jewellers and hobbyists who require accurate small-diameter holes in various materials. This drill targets users needing fine hole-making capability without the bulk of larger tooling.

0.42 mm diameter capacity

The 0.42 mm drill diameter handles intricate work in metals, plastics and composites where minimal material removal is essential. It provides clean entry and consistent sizing for applications such as watchmaking, electronics prototyping and fine model engineering. The small diameter limits its use to shallow depths and light feed rates; it is not suited for heavy stock removal or deep-hole drilling.

California Proposition 65 notice

The product carries a California Proposition 65 warning indicating it contains a chemical known to the state to cause cancer and birth defects or other reproductive harm. This notice informs users to follow safe handling practices such as wearing gloves and avoiding dust inhalation. No additional accessories or software are bundled with the drill.

How it compares

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

Price $15.99
Cheaper than about 73% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameM.A. FORD

Questions about this item

Will the 0.42 mm drill work in the collet I already use for other micro drills?

The shank diameter is 0.42 mm, so it fits any collet or chuck that accepts that size.

How can I verify the drill is cutting correctly after I install it?

Look for clean, round holes without burrs and listen for smooth, steady cutting sound.

Does the package include any collets, lubricants or holders?

Only the 0.42 mm Twister Micro-Tuff drill is supplied; collets, coolant and tool holders are sold separately.

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