Use this intermediate hand tap when you cut metric ISO threads by hand and you want a defined lead geometry for the second stage of tapping, depending on your method.
DIN 352 defines the hand tap proportions. HSS G indicates a ground tool, which supports a clean cutting edge for manual thread work.
Note Start the tool square to the hole axis, use suitable cutting fluid, and keep the tap wrench stable to protect the cutting edges.
Intermediate describes the second stage tool in a common hand tapping sequence. It is typically used after a lead tap to deepen and refine the thread profile, depending on your process.
Do you always need more than one hand tap for a full thread?Not always, but many manual processes use multiple stages to control cutting forces and alignment. Check your shop standard and the required thread depth before you decide.
Can you use the tool in the size M 100 x 6.0 by hand and in a machine?Yes, depending on your holder and setup you can drive the tool by hand or with a machine. Focus on alignment, lubrication, and controlled torque to protect the cutting edges.
How do you know when the tap is worn?Typical signs are rising torque, rough thread flanks, and inconsistent fit with the mating part. Replace the tap if the cutting edges look rounded or chipped.
How do you choose the correct pre drilled hole for tapping?Use a drill size recommendation that matches the thread and tolerance requirement. Use a chart from your process documentation or the manufacturer, and avoid guesswork.
Where can you find technical background on hand taps and correct use?Use this document for selection guidance and general process parameters: Technical information hand taps as PDF.
Can you run this tap in a machine and in a hand setup?Yes, depending on your holder and setup you can drive the tool by hand or with a machine. Focus on alignment, lubrication, and controlled torque to protect the cutting edges.
Where can you find the VÖLKEL threading tools catalog for additional sizes and executions?For the full overview use: VD 23 catalog as PDF.
Do you need help selecting or using the product?
Use the contact form.
| Type of thread | metric ISO-thread |
|---|---|
| Standard | DIN 352 |
| Material | HSS-G |
| Tolerance | ISO2 (6H) |
| Size | M 100 x 6.0 |
| Overall length (L1) | 280 mm |
| Thread length (L2) | 90 mm |
| Core hole diameter (D1) | 94.0 mm |
| Shank diameter (D2) | 56.0 mm |
| Drive connector | 44.0 mm |
| Item number | 28138-2 |
| Type of flute | straight fluted |
| Application | for through and blind holes |
| Thread standard | DIN 13 |









