Machine Tap DIN 376 Form C 15° Spiral Flute HSSE - M 24 x 3.0

• For general use in machine processing.
• Ideal for highly machinable materials with a tensile strength up to 900 N/mm².
• Specially for blind holes, as the spiral flute design ensures optimal chip evacuation.
• Suitable for unalloyed and low-alloy steels.
• The short lead Form C (2-3 threads) enables fast and efficient thread cutting.

1. Step 1: Preparation of the Core Hole
   Drill a core hole of the correct size. For an M 24 x 3.0 thread, you need a 21.0 mm core hole (24 mm - 3.0 mm pitch). It is important to use the correct drill bit size to ensure optimal thread quality.
2. Step 2: Clamping the Tool
   Securely clamp the machine tap into the holder of your machine (e.g., drill chuck with square drive). Make sure the tool is firmly in place and cannot slip.
3. Step 3: Performing the Thread Cut
   Advance the tap into the core hole using the recommended cutting speed and feed rate for the material. Depending on the material, use a suitable cutting oil or coolant. The spiral flutes ensure automatic chip evacuation.
4. Step 4: Checking the Result
   After cutting the thread, retract the tap from the hole. Check the finished thread with a suitable thread gauge (e.g., a go/no-go plug gauge) to inspect its dimensional accuracy and quality.

• Thread Type: Metric ISO Thread DIN 13
• Standard: DIN 376
• Form: Form C with 15° Spiral Flutes (SP)
• Material: HSSE (High Speed Steel with 5% Cobalt)
• Tolerance: ISO 2 / 6H
• Nominal Size: M 24 x 3.0
• Overall Length (L1): 160 mm
• Thread Length (L2): 38 mm
• Shank Diameter (D2): 18 mm
• Drive: Square 14.5 mm
• EAN: 4022835386742
• Item Number: 38674

Q: What is a machine tap?

A: A machine tap is a threading tool specifically designed for use in machines such as drill presses, NC, or CNC machines. Unlike a hand tap, it allows for more precise and efficient production of internal threads in a single pass.

Q: What does the designation DIN 376 mean?

A: DIN 376 is a standard that specifies the dimensions of machine taps for metric threads with a reinforced shank. The reinforced shank provides increased stability and break resistance during machine processing.

Q: What is the advantage of Form C with 15° SP?

A: Form C stands for a lead of 2 to 3 threads, which is ideal for blind holes. The **spiral flutes** (SP) promote chip evacuation from the drilled hole, preventing the hole from clogging. This ensures high process reliability and improved thread quality.

Q: What does the material designation HSSE stand for?

A: HSSE is an abbreviation for High Speed Steel with Cobalt. The addition of cobalt increases the hot hardness and wear resistance of the tool, making it suitable for demanding applications and harder materials.

Q: What core hole size do I need for an M 24 x 3.0 thread?

A: The core hole size is calculated by subtracting the thread pitch (3.0 mm) from the nominal diameter (24 mm). You therefore need a core hole of 24 mm - 3.0 mm = 21.0 mm.