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Silver Twister Xd coolant-fed drill bit, 4.90 mm diameter

M.A. Ford

M.A. Ford Twister Xd 5X Coolant Fed Drill 4.90 mm

SKU CH-H7NA-7NJ2M

A coolant-fed drill with five-times diameter capability for 4.90 mm holes

  • 5x diameter drilling depth for fewer tool changes
  • Coolant-fed design evacuates chips from deep holes
  • 90 mm cutting diameter for precise pilot holes
  • M.A. Ford Twister XD geometry extends tool life
  • California Proposition 65 warning applies to this product

Twister Xd 5X Coolant-Fed Drill

The M.A. Ford Twister Xd 5X is a coolant-fed drill built for precision hole-making in metalworking environments. It suits machinists and fabricators who need reliable chip evacuation and thermal control during deep or repetitive drilling cycles. The 4.90 mm diameter targets specific fastener or pilot-hole requirements in production settings.

Practical Limits of Coolant-Fed Drilling

Coolant-fed operation allows cutting fluid to reach the tip directly, which extends tool life and improves hole quality in deeper holes. Performance still depends on machine rigidity, spindle runout and the workpiece material's machinability. The design does not overcome fundamental limits such as insufficient coolant pressure or unstable fixturing.

Replacing Standard Twist Drills

This drill replaces conventional twist drills where heat buildup and chip packing reduce accuracy or tool life. The upgrade is worth it when hole depth exceeds typical flute length or when consistent finish and diameter tolerance are required. It is not suited for hand-held use or machines without through-spindle coolant capability.

How it compares

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

Price $111.99
Pricier than about 60% of the 2,412 comparable items (median $81.99).

Specifications

Product
Brand nameM.A. FORD

Questions about this item

Which Twister Xd 5X coolant-fed drill diameter should I pick for a 4.90 mm hole?

The 2XDCR1929A variant is ground to 4.90 mm, so choose this exact part number when the finished hole must be 4.90 mm.

What does the 4.90 mm size mean once the drill is in the machine?

It produces a 4.90 mm diameter hole at full 5× depth capability with coolant fed through the tool for chip evacuation.

What shank interface does the 2XDCR1929A use and what does it limit?

The drill uses a standard cylindrical shank that fits common drill holders, limiting use to machines with matching collet or chuck capacity.

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