M.A. Ford
M.A. Ford HPDCR 0420A Twister HPD Coolant Drill 4.20 mm
A 4.20 mm coolant-fed drill designed for high-performance drilling applications
- Precise 4.20 mm diameter for accurate hole sizing
- 5X coolant-through design improves chip evacuation and tool life
- High-performance drill geometry reduces cutting forces
- M.A. Ford manufacturing quality ensures consistent reliability
- California Proposition 65 warning discloses regulated chemical content
4.20 mm Coolant Drill
The M.A. Ford HPDCR 0420A Twister HPD is a 4.20 mm coolant-fed drill designed for high-performance drilling tasks. It targets machinists and maintenance technicians who need a dedicated 5× diameter tool for precise hole-making in metal.
Suited for 5× depth holes in metal
This drill suits workshops producing repeated 4.20 mm holes at five times diameter depth where through-coolant delivery improves chip evacuation and tool life. It does not suit operations requiring different diameters, longer reach beyond 5×, or non-coolant drilling setups.
4.20 mm diameter with 5× length
The single specification that decides fit is the 4.20 mm cutting diameter combined with a 5× length-to-diameter ratio. Verify that your machine and workpiece require exactly this size and depth before purchase.
Highlights
- Precise 4.20 mm diameter for accurate hole sizing
- 5X coolant-through design improves chip evacuation and tool life
- High-performance drill geometry reduces cutting forces
- M.A. Ford manufacturing quality ensures consistent reliability
- California Proposition 65 warning discloses regulated chemical content
Specifications
| Brand | M.A. FORD |
|---|
Questions about this item
How do I install the 4.20 mm Twister HPD coolant drill and what step is often missed?
Clamp the workpiece securely, select the correct 5X coolant-fed holder, and run the spindle at the recommended RPM for 4.20 mm; the step most often missed is verifying coolant flow through the drill before starting the cut.
What maintenance or replacement will the 4.20 mm Twister HPD drill need later?
Inspect the cutting edges after each job; resharpen or replace the drill when flank wear reaches the limit for 4.20 mm diameter, and check coolant passages for blockage.
What limit appears first on the 4.20 mm Twister HPD drill under sustained use?
Heat buildup at the cutting zone typically limits continuous drilling before tool wear does, so maintain steady coolant pressure and avoid excessive feed rates.
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