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First cut hand tap from VÖLKEL – high-precision taper tap for clean internal threads and reliable thread alignment.
Technical drawing of a VÖLKEL thread tap with labeled diameters and lengths.
Line drawing of a VÖLKEL taper tap showing the thread geometry and cutting lead for accurate hand thread cutting.
First cut hand tap from VÖLKEL – high-precision taper tap for clean internal threads and reliable thread alignment.
Technical drawing of a VÖLKEL thread tap with labeled diameters and lengths.
Line drawing of a VÖLKEL taper tap showing the thread geometry and cutting lead for accurate hand thread cutting.
M (metric)

Hand Tap Rougher DIN 352 HSS-G - M 4 x 0.7

Item no. 27330-1

€2.40

in stock - more than 100 pieces available
Application
VÖLKEL Hand Tap Rougher DIN 352 HSS-G M4 x 0.7

VÖLKEL Hand Tap Rougher DIN 352 HSS-G – M 4 x 0.7

The VÖLKEL Hand Tap Rougher (DIN 352, HSS-G) is designed for precise hand tapping of M4 x 0.7 internal threads. It is suitable for general use in non-abrasive materials up to 900 N/mm², including unalloyed and low-alloy steels, and works in both through and blind holes. Ground HSS-G cutting edges ensure dimensional accuracy and long tool life at an attractive price point.

Application & Benefits
  • For general use in workshop and assembly
  • Non-abrasive materials up to 900 N/mm²
  • Suitable for unalloyed and low-alloy steels
  • For through and blind holes
  • Optimised for hand tapping
  • Ground HSS-G geometry for clean threads and durability
  • Great value: €2.40 per piece

Step-by-Step (Hand Tapping Guide)
  1. Prepare: Drill the correct tapping size, deburr and clean the bore.
  2. Secure: Clamp the workpiece firmly to avoid tilt or misalignment.
  3. Lubricate: Apply cutting oil/paste to bore and tap to reduce friction.
  4. Align & start: Keep the tap perpendicular and turn it evenly clockwise by hand.
  5. Cut to depth: Continue with steady pressure until the target depth is reached.
  6. Finish: Back the tap out, clean the bore and check with a matching screw or gauge.

Tip: For premium results, use a rougher, intermediate and finisher sequence where applicable.

Technical Details
Thread formMetric ISO thread DIN 13
StandardDIN 352
MaterialHSS-G
ToleranceISO 2 / 6H
SizeM 4 x 0.7
Overall length (L1)45 mm
Thread length (L2)13 mm
Shank diameter (D2)4.5 mm
DriveSquare 3.4 mm
Article number27330-1
Product pageOpen link
Price€2.40

FAQ

Can I use this tap in a machine?
This model is primarily intended for hand use. For machine operations, consider taps to DIN 371/376.

Do I need cutting fluid?
Yes. Cutting fluid improves surface finish and extends tool life.

What distinguishes a rougher tap?
The rougher is the first tap in a set and opens the thread profile before intermediate and finisher taps complete it.

How long will the tool last?
With correct lubrication and alignment, the HSS-G tap provides long service life and repeatable accuracy.

Is it supplied individually?
Yes. Single piece, article no. 27330-1, price €2.40.

Need assistance or matching intermediate and finisher taps? Contact us via the contact form.

Additional information
Type of thread metric ISO-thread
Standard DIN 352
Material HSS-G
Tolerance ISO2 (6H)
Size M 4 x 0.7
Overall length (L1) 45 mm
Thread length (L2) 13 mm
Core hole diameter (D1) 3.3 mm
Shank diameter (D2) 4.5 mm
Drive connector 3.4 mm
Item number 27330-1
Type of flute straight fluted
Application for through and blind holes
Thread standard DIN 13
VÖLKEL Hand Tap Rougher DIN 352 HSS-G M4 x 0.7

VÖLKEL Hand Tap Rougher DIN 352 HSS-G – M 4 x 0.7

The VÖLKEL Hand Tap Rougher (DIN 352, HSS-G) is designed for precise hand tapping of M4 x 0.7 internal threads. It is suitable for general use in non-abrasive materials up to 900 N/mm², including unalloyed and low-alloy steels, and works in both through and blind holes. Ground HSS-G cutting edges ensure dimensional accuracy and long tool life at an attractive price point.

Application & Benefits
  • For general use in workshop and assembly
  • Non-abrasive materials up to 900 N/mm²
  • Suitable for unalloyed and low-alloy steels
  • For through and blind holes
  • Optimised for hand tapping
  • Ground HSS-G geometry for clean threads and durability
  • Great value: €2.40 per piece

Step-by-Step (Hand Tapping Guide)
  1. Prepare: Drill the correct tapping size, deburr and clean the bore.
  2. Secure: Clamp the workpiece firmly to avoid tilt or misalignment.
  3. Lubricate: Apply cutting oil/paste to bore and tap to reduce friction.
  4. Align & start: Keep the tap perpendicular and turn it evenly clockwise by hand.
  5. Cut to depth: Continue with steady pressure until the target depth is reached.
  6. Finish: Back the tap out, clean the bore and check with a matching screw or gauge.

Tip: For premium results, use a rougher, intermediate and finisher sequence where applicable.

Technical Details
Thread formMetric ISO thread DIN 13
StandardDIN 352
MaterialHSS-G
ToleranceISO 2 / 6H
SizeM 4 x 0.7
Overall length (L1)45 mm
Thread length (L2)13 mm
Shank diameter (D2)4.5 mm
DriveSquare 3.4 mm
Article number27330-1
Product pageOpen link
Price€2.40

FAQ

Can I use this tap in a machine?
This model is primarily intended for hand use. For machine operations, consider taps to DIN 371/376.

Do I need cutting fluid?
Yes. Cutting fluid improves surface finish and extends tool life.

What distinguishes a rougher tap?
The rougher is the first tap in a set and opens the thread profile before intermediate and finisher taps complete it.

How long will the tool last?
With correct lubrication and alignment, the HSS-G tap provides long service life and repeatable accuracy.

Is it supplied individually?
Yes. Single piece, article no. 27330-1, price €2.40.

Need assistance or matching intermediate and finisher taps? Contact us via the contact form.

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