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TCM.D376

Tap holder, DIN, 376, Weldon.

Tap holder, standard type DIN, 376, connection type Weldon.

thread size (millimeter)

connection 1 type

Order

TCM.D376

Order code TCM.08D376

EAN code 8718375397589

Order

TCM.08D376

Order code TCM.10D376

EAN code 8718375397602

Order

TCM.10D376

Order code TCM.12D376

EAN code 8718375397626

Order

TCM.12D376

Show alternatives

Order code TCM.14D376

EAN code 8718375397640

Order

TCM.14D376

Order code TCM.16D376

EAN code 8718375397664

Order

TCM.16D376

Order code TCM.18D376

EAN code 8718375397688

Order

TCM.18D376

Order code TCM.20D376

EAN code 8718375397701

Order

TCM.20D376

Order code TCM.22D376

EAN code 8718375397725

Order

TCM.22D376

Order code TCM.27D376

EAN code 8718375414620

Order

TCM.27D376

Order code TCM.30D376

EAN code 8718375414637

Order

TCM.30D376

Properties
Product info
Variations

Properties

Connection
connection 1 model	outside
connection 1 type	Weldon, Nitto / Weldon
Dimensions
thread size (millimeter)	See table
inside / minimum diameter (millimeter)	See table
Properties
standard code	376
standard type	DIN
system of measurement	mm (metric)
application	threading

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 Euroboor, click the button below to see the overview!

View the tapping page

Variations

No.	thread size (millimeter)	inside / minimum diameter (millimeter)	connection 1 type	Quantity
No.				Quantity
52520600800004 TCM.08D376	thread size (Ts / mm): 8	diameter inside, -from (Di / mm): 6	connection type 1 (ConnT_1): Weldon	Tap holder, DIN, 376, 8 mm, Weldon.
52520701000004 TCM.10D376	thread size (Ts / mm): 10	diameter inside, -from (Di / mm): 7	connection type 1 (ConnT_1): Weldon	Tap holder, DIN, 376, 10 mm, Weldon.
52520901200004 TCM.12D376	thread size (Ts / mm): 12	diameter inside, -from (Di / mm): 9	connection type 1 (ConnT_1): Weldon	Tap holder, DIN, 376, 12 mm, Weldon.
52521101400004 TCM.14D376	thread size (Ts / mm): 14	diameter inside, -from (Di / mm): 11	connection type 1 (ConnT_1): Weldon	Tap holder, DIN, 376, 14 mm, Weldon.
52521201600004 TCM.16D376	thread size (Ts / mm): 16	diameter inside, -from (Di / mm): 12	connection type 1 (ConnT_1): Weldon	Tap holder, DIN, 376, 16 mm, Weldon.
52521401800004 TCM.18D376	thread size (Ts / mm): 18	diameter inside, -from (Di / mm): 14	connection type 1 (ConnT_1): Weldon	Tap holder, DIN, 376, 18 mm, Weldon.
52521602000004 TCM.20D376	thread size (Ts / mm): 20	diameter inside, -from (Di / mm): 16	connection type 1 (ConnT_1): Nitto / Weldon	Tap holder, DIN, 376, 20 mm, Weldon.
52521802400004 TCM.22D376	thread size (Ts / mm): 22	diameter inside, -from (Di / mm): 18	connection type 1 (ConnT_1): Weldon	Tap holder, DIN, 376, 22 mm, Weldon.
52522002700004 TCM.27D376	thread size (Ts / mm): 27	diameter inside, -from (Di / mm): 20	connection type 1 (ConnT_1): Weldon	Tap holder, DIN, 376, 27 mm, Weldon.
52522203000004 TCM.30D376	thread size (Ts / mm): 30	diameter inside, -from (Di / mm): 22	connection type 1 (ConnT_1): Weldon	Tap holder, DIN, 376, 30 mm, Weldon.