M.A. Ford
M.A. Ford HPDCR 0470A Twister HPD Coolant Drill 4.70 mm
A 4.70 mm high-performance coolant drill designed for five-times diameter drilling depth
- 70 mm diameter suits precise hole-making
- Coolant-through design improves chip evacuation
- 5X helix angle reduces cutting forces
- M.A. Ford brand backs professional-grade tooling
- California Proposition 65 warning applies to this item
4.70 mm coolant-fed drill for high-performance
The M.A. Ford HPDCR 0470A Twister HPD is a 4.70 mm coolant-through drill designed for high-performance drilling applications. It targets machinists and engineers who need precise hole-making with internal coolant delivery. The tool suits production environments where chip evacuation and thermal control are critical. Buyers who need larger diameters or non-coolant drills should look elsewhere.
California Proposition 65 chemical warning applies
This product carries a California Proposition 65 warning for exposure to a chemical known to cause cancer and a chemical known to cause birth defects or other reproductive harm. The notice is a regulatory requirement and does not describe operating temperature, noise level or power consumption. No thermal, acoustic or electrical data is provided by the supplier. Users should follow standard shop safety practices when handling and operating the drill.
5X diameter drilling depth capability
The drill is specified as a 5X tool, meaning its flute length supports drilling to five times the 4.70 mm diameter. This single specification determines whether the reach matches the workpiece thickness and hole-depth requirement. No other dimensions, coatings or substrate grades are listed in the source data. Verify the required depth before purchase.
Highlights
- 70 mm diameter suits precise hole-making
- Coolant-through design improves chip evacuation
- 5X helix angle reduces cutting forces
- M.A. Ford brand backs professional-grade tooling
- California Proposition 65 warning applies to this item
Specifications
| Brand | M.A. FORD |
|---|
Questions about this item
How is the 4.70 mm Twister HPD coolant drill installed in a CNC holder, and what step is often missed?
Clamp the 4.70 mm shank in a hydraulic or shrink-fit holder rated for coolant-through; the step often missed is verifying the holder’s internal coolant passages are clear before the first hole.
What maintenance or replacement will the 4.70 mm Twister HPD drill need later?
The solid-carbide 4.70 mm drill cannot be economically resharpened; replace it when flank wear reaches the manufacturer’s wear limit or when hole diameter exceeds tolerance.
What limit shows up first on the 4.70 mm Twister HPD drill under sustained high-feed drilling?
Chip evacuation through the 5×D flutes becomes the limiting factor; packed chips raise torque and temperature, leading to premature corner wear or breakage.
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