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Twister HPD coolant drill bit 6.60 mm silver finish

M.A. Ford

M.A. Ford HPDCR 0660A Twister HPD Coolant Drill 5X 6.60 mm

SKU CH-X6WM-9Y0MW

6.60 mm coolant-fed drill bit for high-performance drilling applications

  • Twister HPD design enables high-performance coolant-through drilling
  • 60 mm diameter suits precise hole-making tasks
  • 5X length provides extended reach for deep holes
  • M.A. Ford manufacturing ensures professional-grade tool quality
  • California Proposition 65 warning indicates regulated chemical content

6.60 mm Twister HPD coolant drill

The M.A. Ford HPDCR 0660A is a 6.60 mm diameter drill built for high-performance drilling with through-coolant delivery. It targets machinists and maintenance teams who need precise holes in tough materials where heat evacuation and chip removal are critical.

Replaces standard twist drills without coolant holes

Conventional drills rely on external flood coolant that often fails to reach the cutting zone in deep holes. The internal coolant channels on this tool push fluid directly to the tip, extending tool life and allowing higher feed rates when hole depth exceeds three diameters or when machining stainless and high-temperature alloys.

Suits CNC operators running deep-hole

The 5× length-to-diameter ratio supports deeper passes in a single operation. Shops that only drill shallow holes in mild steel, or that lack through-spindle coolant capability, will not benefit from the added complexity and should choose a shorter solid drill instead.

How it compares

Measured against everything we stock in Power Drills, Drivers & Cutting Bits, at today’s prices. Recalculated every night.

Price $70.99
Typical for this category: the median of 2,412 items is $81.99.

Specifications

Product
Brand nameM.A. FORD

Questions about this item

What size chuck or collet is required for the 6.60 mm shank?

The drill has a 6.60 mm diameter shank, so a chuck or collet that accepts 6.60 mm is needed for secure mounting.

How is the through-coolant feature activated during installation?

Connect the machine's coolant supply to the drill's internal coolant hole; the step often missed is verifying the coolant port alignment before tightening the holder.

When should the 6.60 mm drill be replaced due to wear?

Replace the drill when the cutting edges show chipping, the 6.60 mm diameter has reduced measurably, or hole quality and coolant flow decline.

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