Hand Tap set of 3 pieces HSS-G - Tr 16 x 4

• Manual cutting of internal threads in prepared holes.
• Thread rework where the existing internal thread must be cleaned or recut.
• Use in maintenance, tool room work, mechanical engineering, and metalworking.
• Match the nominal thread designation to the mating component before cutting.
• 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 Check the thread designation, hole preparation, tap alignment, and lubrication before starting the cut.

• Manual hand tap geometry supports controlled torque input with a suitable tap wrench.
• The thread designation in the product data gives a clear selection point for matching the mating part.
• The stated standard and material help you compare the tool with the required workshop specification.
• The staged hand tapping logic supports precise thread production when alignment is maintained.

• Manual tapping depends strongly on alignment and lubrication, so use a suitable tap wrench and inspect the thread if fit is critical.

1. Confirm that the thread designation on the product matches the part you need to machine.
2. Prepare the hole and entry chamfer according to the relevant thread specification.
3. Clamp the workpiece so the tool can enter straight and without side load.
4. Apply cutting fluid suitable for the workpiece material.
5. Start the tap square to the hole axis with steady, controlled torque.
6. Withdraw the tap when needed to clear chips from the cutting area.
7. Clean the finished thread and check the fit with the mating part or a suitable gauge.

• 1 set: Hand Tap set of 3 pieces HSS-G - Tr 16 x 4

• Type: 3-piece hand tap set
• Material: HSS-G
• Thread system: Tr
• Thread designation: Tr 16 x 4
• Set structure: taper tap, intermediate tap, and bottoming tap

How do you select the correct variant?
Match the thread designation in the product name to the drawing, existing thread, or mating part. Do not substitute a similar thread system unless the specification explicitly allows it.

Is this product used for internal or external threads?
This product is used for internal threads. External threads require a die or another external threading tool.

Which holder should you use?
Use a tap wrench or a guided holder that keeps the tap square to the hole. Do not infer a precise holder size unless your holder data confirms it.

What should you check before cutting?
Check hole preparation, entry chamfer, tool alignment, lubrication, and workpiece clamping. These checks reduce the risk of poor thread fit or tool damage.

How do you know when to stop and recheck the setup?
Stop if the tap starts crooked, torque rises suddenly, or the thread surface looks torn. Recheck alignment, lubrication, and hole preparation before continuing.

Can you use this for thread cleaning?
You can use the tap for thread cleaning only when the thread designation matches and the existing thread is not too damaged. Severe damage may require a thread repair solution.

Where can you find further selection tables and technical guidance in the catalog?
Use the catalog for additional information and selection support. VD 23 catalog as PDF