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Small gold twist drill bit marked number 81

M.A. Ford

M.A. Ford Twister Micro-Tuff Drill No 81 30501300AM

SKU CH-BJ1C-7VJ6P

Micro-Tuff Drill No 81 for precision drilling in tough materials, item 30501300AM

  • Twister Micro-Tuff design for precision drilling
  • No 81 sizing matches specific application needs
  • M.A. Ford brand trusted in professional workshops
  • New condition ensures full factory performance
  • California Proposition 65 warning informs safe handling

Twister Micro-Tuff Drill No 81

The M.A. Ford Twister Micro-Tuff Drill No 81 is a cutting tool designed for precision drilling tasks in professional workshops. It carries the manufacturer part number 30501300AM and is supplied in new condition. This accessory targets machinists and maintenance technicians who require reliable performance on small-diameter holes.

Suited for precision micro-drilling.

This drill suits users producing accurate, small holes in metal or composite materials where tool rigidity and chip evacuation matter. It is not intended for buyers who need large-diameter drilling, high-volume material removal, or tools compatible with high-torque impact drivers. Shops requiring coolant-through capability or specialised coating options for exotic alloys should evaluate alternative product lines.

Simple collet or chuck mounting, watch run-out

Installation consists of securing the shank in a precision collet or drill chuck and verifying concentricity before cutting. The most common issue is excessive run-out caused by worn collets or debris in the holder, which leads to premature wear or breakage. Ensure the workpiece is rigidly clamped and use appropriate peck cycles to manage chips in deep holes.

How it compares

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

Price $25.99
Typical for this category: the median of 5,493 items is $27.99.

Specifications

Product
Brand nameM.A. FORD

Questions about this item

Which drill chuck size accepts the Twister Micro-Tuff Drill No 81?

The drill has a No 81 wire-gauge shank, so it fits any chuck that holds that diameter.

Can the Twister Micro-Tuff Drill No 81 be used with a corded drill motor I already own?

Yes, it mounts in a standard drill chuck and works with corded or cordless motors.

How do I confirm the Twister Micro-Tuff Drill No 81 is cutting correctly after installation?

Check for clean, round holes without excessive heat or chatter during the first few cuts.

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