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Small silver twist drill bit with cylindrical shank and pointed tip

M.A. Ford

M.A. Ford Twister Micro-Tuff Drill 305M0098 0.98 mm

SKU CH-NT2A-6CDYC

Precision 0.98 mm Twister Micro-Tuff drill bit for micro-hole drilling applications

  • Micro-Tuff design resists breakage in micro drilling
  • 98 mm diameter suits precision hole making
  • Twister geometry improves chip evacuation
  • M.A. Ford quality ensures reliable performance
  • California Proposition 65 warning applies to this product

Drill bit for micro-hole drilling

The M.A. Ford Twister Micro-Tuff Drill 305M0098 is a 0.98 mm drill bit designed for creating very small holes in a range of materials. It suits machinists, toolmakers and maintenance technicians who need precise micro-diameter drilling capability.

Simple chuck mounting with runout care

Installation requires a collet or chuck capable of gripping a 0.98 mm shank securely. The main issue is excessive runout caused by worn collets or oversized chuck jaws, which can snap the bit at the first plunge. Clean the holder and use the shortest possible gauge length.

Check machine spindle and coolant access

Verify that your machine spindle runs true at the high RPMs needed for 0.98 mm tools and that the workholding is rigid enough to prevent vibration. Confirm coolant or mist delivery can reach the tiny cutting zone; without it the bit will overheat and fail quickly. California Proposition 65 warnings apply to this product.

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 verify the 0.98 mm drill is cutting correctly after installing it in my drill press?

Run a test hole in scrap material and check that the finished hole diameter matches the 0.98 mm specification with clean, round edges and no wandering.

What comes in the package and what must I supply separately?

The box contains the M.A. Ford Twister Micro-Tuff Drill 305M0098; you must provide a compatible drill press or hand drill with a chuck that accepts the shank.

Which capacity should I choose if I need a 0.98 mm hole size?

Select the 305M0098 model, which is manufactured to a 0.98 mm diameter for that exact hole size.

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