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CoroTap® 100

The hole

For basic hole size calculations, use the appropriate formulas for cutting taps.

  • D = Hole diameter (mm, inch)
  • TD = Nominal thread diameter (mm, inch)
  • TP = Thread pitch (mm, inch)
    • Drill size for M10 × 1.5 cutting tap = 10-1.5=8.5 mm

The component

When the hole is analyzed, have a look at the workpiece material, component shape, and quantity.

  • Machinability?
  • Material hardness?
  • Alloy elements?

The machine

The machine influences:

  • The type of operation
  • Which type of tool holders and/or collets to use

Always consider:

  • Machine stability
  • Spindle speed
  • Coolant volume and concentration
  • Workpiece clamping

Tool holding

The CoroChuck® 970 is designed for stable and precise tapping in all materials. It improves tap tool life, surface quality, and offers the highest process security.

Application tips

Choosing the right tap and cutting speed

General speeds can be found in the catalogue, consider the recommended as a safe start value. For more precise cutting data, always use

Keys to a successful tapping operation

To ensure a good tapping operation and a high-quality finished product, follow these steps.

Threading chamfer type

The type of hole to be tapped determines which chamfer type is best suited for use. There are two different chamfer types C and E.

Coolant

Coolant is critical to a successful tapping operation. The coolant supply influences chip evacuation, thread quality and tool life.

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