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Measurement

Tap DIN 376, GR / BH

Tap, DIN, flute.

Tap, HSS-Co, standard type DIN, 376, point type flute.

thread pitch (millimeter)

thread size (millimeter)

Order

Tap DIN 376, GR / BH

Order code 900.101C

EAN code 8718375409817

Order

900.101C

Order code 900.121C

EAN code 8718375397343

Order

900.121C

Order code 900.141C

EAN code 8718375397350

Order

900.141C

Order code 900.161C

EAN code 8718375397367

Order

900.161C

Order code 900.181C

EAN code 8718375397374

Order

900.181C

Order code 900.201C

EAN code 8718375397381

Order

900.201C

Order code 900.221C

EAN code 8718375397398

Order

900.221C

Order code 900.241C

EAN code 8718375397404

Order

900.241C

Order code 900.271C

EAN code 8718375397411

Order

900.271C

Order code 900.301C

EAN code 8718375397428

Order

900.301C

Properties
Product info
Variations

Properties

Dimensions
tool point type	flute
thread pitch (millimeter)	See table
thread size (millimeter)	See table
Properties
ring colour	green
material	high speed steel with 5% cobalt
outside finish	blank
standard code	376
standard type	DIN
system of measurement	mm (metric)
application	threading
Other
suitable for hole type	blind hole

HSS Cobalt Machine Taps –
Metric Thread Taps for Metal

Tapping is the process of cutting internal threads in a predrilled hole, allowing bolts or other fasteners to be securely fitted. Choosing the right machine tap and pairing it with the correct tap drill size is essential for producing accurate, clean threads and extending tool life.

Manufactured from High Speed Steel with added cobalt, our taps offer outstanding heat resistance and wear durability, making them ideal for professional metalworking. These metric HSS Cobalt machine taps are designed to cut continuous threads in construction steel, aluminium, zinc, lead, copper, brass, cast iron, and stainless steel. All our taps, for both blind holes and through holes, are suitable for use in magnetic drilling machines that support right/left (R/L) rotation.

Tapping Chucks with Automatic Reverse

If your machine does not support right / left rotation, these taps can be used with our GSW series tapping chucks. These chucks automatically switch to counter-rotation for easy tap retraction, even without R/L functionality.

Through Holes – HSS Cobalt Machine Taps

Through holes are drilled completely through the workpiece, allowing chips to exit from the opposite side. Our HSS Cobalt machine taps for through holes feature straight flutes that push chips forward and out of the hole during tapping, ensuring smooth, precise results.

Blind Holes – HSS Cobalt Machine Taps

Blind holes are drilled to a specific depth without breaking through the opposite side of the workpiece. Our HSS Cobalt machine taps for blind holes feature precision-ground spiral flutes that pull chips up and out of the hole, preventing clogging and reducing the risk of tap damage.

DIN Standards – 371 vs 376

Machine taps are manufactured according to DIN standards, which define shank design and dimensions:

DIN 371: Reinforced shank for extra strength, used for sizes M3 to M10.
DIN 376: Reduced shank diameter for deeper holes, used for sizes M12 to M24.

Note: M10 is available in both DIN 371 and DIN 376 depending on application and shank type.

Available sizes and recommended predrilled hole sizes

DIN 371 Taps

Size (Thread × Pitch) (mm)	Advised Predrilled Hole (mm)
M3 × 0.50	2.5
M4 × 0.70	3.3
M5 × 0.80	4.2
M6 × 1.00	5.0
M8 × 1.25	6.8
M10 × 1.50	8.5

DIN 376 Taps

Size (Thread × Pitch) (mm)	Advised Predrilled Hole (mm)
M10 × 1.50	8.5
M12 × 1.75	10.2
M14 × 2.00	12.0
M16 × 2.00	14.0
M18 × 2.50	15.5
M20 × 2.50	17.5

Din 376 Taps continued

Size (Thread × Pitch) (mm)	Advised Predrilled Hole (mm)
M22 × 2.50	19.5
M24 × 3.00	21.0
M27 × 3.00	24.0
M30 × 3.50	26.5

Would you like to see the whole tapping assortment of the Euroboor, click the button below to see the overview!

View the tapping page

Variations

No.	thread pitch (millimeter)	thread size (millimeter)	Quantity
No.			Quantity
52821001515004 900.101C	thread pitch (Tp / mm): 1.5	thread size (Ts / mm): 10	Tap, DIN, 376, thread size 10 mm, flute.
52821201517004 900.121C	thread pitch (Tp / mm): 1.75	thread size (Ts / mm): 12	Tap, DIN, 376, thread size 12 mm, flute.
52821401520004 900.141C	thread pitch (Tp / mm): 2	thread size (Ts / mm): 14	Tap, DIN, 376, thread size 14 mm, flute.
52821601520004 900.161C	thread pitch (Tp / mm): 2	thread size (Ts / mm): 16	Tap, DIN, 376, thread size 16 mm, flute.
52821801525004 900.181C	thread pitch (Tp / mm): 2.5	thread size (Ts / mm): 18	Tap, DIN, 376, thread size 18 mm, flute.
52822001525004 900.201C	thread pitch (Tp / mm): 2.5	thread size (Ts / mm): 20	Tap, DIN, 376, thread size 20 mm, flute.
52822201525004 900.221C	thread pitch (Tp / mm): 2.5	thread size (Ts / mm): 22	Tap, DIN, 376, thread size 22 mm, flute.
52822401530004 900.241C	thread pitch (Tp / mm): 3	thread size (Ts / mm): 24	Tap, DIN, 376, thread size 24 mm, flute.
52822701530004 900.271C	thread pitch (Tp / mm): 3	thread size (Ts / mm): 27	Tap, DIN, 376, thread size 27 mm, flute.
52823001530004 900.301C	thread pitch (Tp / mm): 3.5	thread size (Ts / mm): 30	Tap, DIN, 376, thread size 30 mm, flute.

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Tapping tools

Tap DIN 376, GR / BH

Tap, DIN, flute.

Properties

HSS Cobalt Machine Taps – Metric Thread Taps for Metal

Tapping Chucks with Automatic Reverse

Through Holes – HSS Cobalt Machine Taps

Blind Holes – HSS Cobalt Machine Taps

DIN Standards – 371 vs 376

Available sizes and recommended predrilled hole sizes

DIN 371 Taps

DIN 376 Taps

Din 376 Taps continued

Variations

HSS Cobalt Machine Taps –
Metric Thread Taps for Metal