We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small gold twist drill bit, size 28, on plain background

M.A. Ford

M.A. Ford Twister Circuit Board Drill 30614050 No 28

SKU CH-HBN0-R173D

Large-size circuit-board drill in size No 28 for precision hole-making in PCBs

  • Twister design for precise circuit board drilling
  • Large-size No 28 drill suits bigger holes
  • M.A. Ford quality for reliable performance
  • New condition ensures full tool life
  • California Proposition 65 warning included

Large circuit-board drill No 28

The M.A. Ford Twister 30614050 is a specialised drill bit for producing holes in printed circuit boards. It suits electronics assemblers and repair technicians who need accurate bore sizes without changing tooling.

Thermals noise and power draw

Heat and noise depend entirely on the drilling machine and the feed rate selected by the operator. The bit itself draws no power and generates no sound, so thermal and acoustic behaviour follows the host equipment.

Prop 65 warning and ship threshold

The product carries a California Proposition 65 notice for substances linked to cancer and reproductive harm. Orders of 75 dollars or more ship free from the manufacturer, but the bit includes no additional accessories or software.

How it compares

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

Price $14.99
Cheaper than about 77% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameM.A. FORD

Questions about this item

How do I install the M.A. Ford Twister drill No 28 in my drill press and what step is often missed?

Chuck the 30614050 shank securely and ensure the drill press runs at the correct RPM for the circuit-board material; the step often missed is verifying run-out before starting the hole.

What maintenance or replacement will the No 28 circuit-board drill need over time?

The cutting edges dull with use; plan to resharpen or replace the drill once hole quality degrades or feed force increases noticeably.

What limit appears first when the Twister drill No 28 is used continuously on dense boards?

Heat buildup at the cutting lips becomes the limiting factor, causing premature wear if feed and speed are not reduced for sustained drilling.

More in Bits, Hole Saws & Accessory Kits

Similar items