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VÖLKEL TwinBox with Form C machine tap and HSS-G reamer NPT for precise thread machining
Open VÖLKEL TwinBox with Form C machine tap and HSS-G reamer NPT for precise thread cutting
VÖLKEL Form C NPT machine tap made of HSS-G, precision tool for cutting internal pipe threads
VÖLKEL NPT reamer HSS-G for precise finishing of pipe threads, durable tool for metalworking
Technical drawing of a VÖLKEL thread tap BA 2 with dimensions D, D2, L1, and L2.
VÖLKEL TwinBox with Form C machine tap and HSS-G reamer NPT for precise thread machining
Open VÖLKEL TwinBox with Form C machine tap and HSS-G reamer NPT for precise thread cutting
VÖLKEL Form C NPT machine tap made of HSS-G, precision tool for cutting internal pipe threads
VÖLKEL NPT reamer HSS-G for precise finishing of pipe threads, durable tool for metalworking
Technical drawing of a VÖLKEL thread tap BA 2 with dimensions D, D2, L1, and L2.
TwinBox 2in1

TwinBox Short machine tap Form C + reamer HSS-G NPT 1/8 x 27

Item no. 63591

€78.50

in stock - more than 10 pieces available
Application

You use this TwinBox combination for NPT thread work where a short machine tap Form C and a matching reamer are kept together for the same thread designation NPT 1/8 x 27. The decisive selection facts are thread size, pipe-thread system, tool form, HSS-G material, and the TwinBox set structure.

NPT identifies a tapered pipe thread, so the tool combination must match the nominal size and threads per inch of the connection. Use the reamer and tap as coordinated tools and keep the sequence aligned with the application requirement.

Application
  • for NPT thread preparation and tapping with coordinated tools for NPT 1/8 x 27
  • for keeping short machine tap and reamer together by thread size
  • for pipe-thread work where nominal size and threads per inch must match
  • Process: manual driving or assisted driving depending on your holder and machine setup
  • Use: thread cutting, re tapping, and thread cleaning depending on condition

Note VÖLKEL uses and recommends spiral drills from LÖHER. LÖHER product catalog as PDF

Benefits
  • TwinBox format keeps the short machine tap and reamer assigned to the same NPT thread size.
  • NPT thread designation in the product name supports correct pipe-thread selection.
  • HSS-G material is stated for the tools in the product title.
  • Combined storage reduces the risk of separating preparation and tapping tools.
Drawbacks
  • The TwinBox still requires correct NPT size verification, so do not use the tools on similar pipe threads without checking the designation.

Step by step
  1. Confirm the NPT thread designation NPT 1/8 x 27.
  2. Select the TwinBox assigned to that thread size.
  3. Use the reamer only when the preparation step requires it.
  4. Cut or rework the internal thread with the short machine tap.
  5. Keep the tool aligned with the hole axis.
  6. Clean the thread after the operation.
  7. Return both tools to the TwinBox after use.

Scope of supply
  • 1 set TwinBox Short machine tap Form C + reamer HSS-G NPT 1/8 x 27

Technical features
  • Product type: TwinBox machine tap and reamer set
  • Thread system: NPT
  • Thread designation: NPT 1/8 x 27
  • Material: HSS-G

Frequently asked questions (FAQ)

What is included conceptually in this TwinBox?

The TwinBox keeps a short machine tap and a reamer together for the same NPT thread size.

How do you select the correct TwinBox?

Match the NPT thread designation NPT 1/8 x 27 exactly to the pipe-thread requirement before use.

When do you use the reamer?

Use the reamer only when the preparation step requires it for the pipe-thread process.

Where can you find the TwinBox overview?

The TwinBox overview is available here: TwinBox overview as PDF

Can the tools be used for other pipe threads?

No, use the tools only when the nominal NPT size and threads per inch match the component.

Where can you find the threading tools catalog?

You can find the threading tools catalog here: VD 23 catalog as PDF

Do you need help selecting or using the product?
Use the contact form.

In this category: Threading tools

Additional information
Type of thread american tapered pipe thread, taper 1:16
Standard DIN
Form Form C
Material HSS-G
Tolerance medium
Size NPT 1/8 x 27
Overall length (L1) 65 mm
Thread length (L2) 19 mm
Core hole diameter (D1) 8.5 mm
Shank diameter (D2) 7.0 mm
Drive connector 5.5 mm
Item number 63591
Type of flute straight fluted
Application for through and blind holes
Thread standard ANSI B1.20.1

You use this TwinBox combination for NPT thread work where a short machine tap Form C and a matching reamer are kept together for the same thread designation NPT 1/8 x 27. The decisive selection facts are thread size, pipe-thread system, tool form, HSS-G material, and the TwinBox set structure.

NPT identifies a tapered pipe thread, so the tool combination must match the nominal size and threads per inch of the connection. Use the reamer and tap as coordinated tools and keep the sequence aligned with the application requirement.

Application
  • for NPT thread preparation and tapping with coordinated tools for NPT 1/8 x 27
  • for keeping short machine tap and reamer together by thread size
  • for pipe-thread work where nominal size and threads per inch must match
  • Process: manual driving or assisted driving depending on your holder and machine setup
  • Use: thread cutting, re tapping, and thread cleaning depending on condition

Note VÖLKEL uses and recommends spiral drills from LÖHER. LÖHER product catalog as PDF

Benefits
  • TwinBox format keeps the short machine tap and reamer assigned to the same NPT thread size.
  • NPT thread designation in the product name supports correct pipe-thread selection.
  • HSS-G material is stated for the tools in the product title.
  • Combined storage reduces the risk of separating preparation and tapping tools.
Drawbacks
  • The TwinBox still requires correct NPT size verification, so do not use the tools on similar pipe threads without checking the designation.

Step by step
  1. Confirm the NPT thread designation NPT 1/8 x 27.
  2. Select the TwinBox assigned to that thread size.
  3. Use the reamer only when the preparation step requires it.
  4. Cut or rework the internal thread with the short machine tap.
  5. Keep the tool aligned with the hole axis.
  6. Clean the thread after the operation.
  7. Return both tools to the TwinBox after use.

Scope of supply
  • 1 set TwinBox Short machine tap Form C + reamer HSS-G NPT 1/8 x 27

Technical features
  • Product type: TwinBox machine tap and reamer set
  • Thread system: NPT
  • Thread designation: NPT 1/8 x 27
  • Material: HSS-G

Frequently asked questions (FAQ)

What is included conceptually in this TwinBox?

The TwinBox keeps a short machine tap and a reamer together for the same NPT thread size.

How do you select the correct TwinBox?

Match the NPT thread designation NPT 1/8 x 27 exactly to the pipe-thread requirement before use.

When do you use the reamer?

Use the reamer only when the preparation step requires it for the pipe-thread process.

Where can you find the TwinBox overview?

The TwinBox overview is available here: TwinBox overview as PDF

Can the tools be used for other pipe threads?

No, use the tools only when the nominal NPT size and threads per inch match the component.

Where can you find the threading tools catalog?

You can find the threading tools catalog here: VD 23 catalog as PDF

Do you need help selecting or using the product?
Use the contact form.

In this category: Threading tools

Die visible through a larger die.
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