Dormer Machine Taps

Dormer machine tap ranges have been designed for use with a high quality floating tool holder. For synchronous tapping on CNC machines with a rigid tapping cycle, Dormer SynchroFlex tool holders are recommended for a precisely defined minimum compensation in order to maximise machine performance. This is particularly important for larger sizes of spiral flute taps.

Available in spiral point for through holes and spiral flute for blind holes with 45 spiral angle. The three radii profile, with a constant rake angle all along the flute, is specially designed to give an optimum performance and chip evacuation in materials being threaded.
Surface Treatment
Special gold finish with bright flutes/thread, or steam tempering (blue) guarantee a smooth cutting action with less build up on the cutting edge.

Manufactured from HSS-XS1 premium quality vanadium powder steel and HSCo for superior toughness and edge strength, to give a high resistance to wear and long tool life.

All taps are available in Metric thread form initially. Thread forms Metric Fine, UNC, UNF and G will be stocked from September 2010.
Short Thread Length
The short thread length means low torque and better chip evacuation.
Thread Depth
Threading to depths of up to 2.5 x Diameter.

EX00 Series Spiral Flute Metric Machine Tap

Dormer Spiral Point Machine Taps for blind holes.
With Gold finish and bright flutes.
Taper lead to DIN form C.
Tapping tolerance to 6H.
Max depth 2.5 x D.
Helix angle 45.

EP11 DIN 374 Spiral Point Metric Fine Taps

Steam Tempered Finish
Tolerance: 6H

Dormer Metric Coarse HSS Ground Thread Taps

Series E500. Comply with IS529.

Second Tap (Straight Flute)

Dormer Taps

Dormer MTT-X Series taps are manufactured from HSS-X1 Steel with a Bright finish, they are right Hand Cutting.

Manufactured to ISO 529
Spiral Flute for threading blind holes.
Taper lead to DIN form C.
Tapping tolerance to 6H.
Max Depth 2.5 x D.
Helix angle 48.

For all technical and dimensional specifications please refer to our catalogue.

Dormer Taps

Dormer MTT-X Series taps are manufactured from HSS-X1 Steel with Bright finish, they are right Hand Cutting.

Manufactured to ISO 529
Spiral Point for threading through holes.
Taper lead to DIN form B.
Tapping tolerance to 6H.
Max Depth 2.5 x D.

For all technical and dimensional specifications please refer to our catalogue.

Dormer Taps

Dormer MTT-X Series taps are manufactured from HSS-X1 Steel with Bright finish, they are right Hand Cutting.

Manufactured to ISO 529
Spiral Point for threading through holes.
Taper lead to DIN form B.
Tapping tolerance to 6H.
Max Depth 2.5 x D.

For all technical and dimensional specifications please refer to our catalogue.

E021 Spiral Point UNC (Unified Coarse) Tap HSS-X1

Dormer Machine Taps

Dormer machine tap ranges have been designed for use with a high quality floating tool holder. For synchronous tapping on CNC machines with a rigid tapping cycle, Dormer SynchroFlex tool holders are recommended for a precisely defined minimum compensation in order to maximise machine performance. This is particularly important for larger sizes of spiral flute taps.

Available in spiral point for through holes and spiral flute for blind holes with 45 spiral angle. The three radii profile, with a constant rake angle all along the flute, is specially designed to give an optimum performance and chip evacuation in materials being threaded.
Surface Treatment
Special gold finish with bright flutes/thread, or steam tempering (blue) guarantee a smooth cutting action with less build up on the cutting edge.

Manufactured from HSS-XS1 premium quality vanadium powder steel and HSCo for superior toughness and edge strength, to give a high resistance to wear and long tool life.

All taps are available in Metric thread form initially. Thread forms Metric Fine, UNC, UNF and G will be stocked from September 2010.
Short Thread Length
The short thread length means low torque and better chip evacuation.
Thread Depth
Threading to depths of up to 2.5 x Diameter.

EP01 Series Spiral Point Metric Machine Tap

Dormer Spiral Point Machine Taps for through holes. Taper lead to DIN form B.
With Blue finish.
Tapping tolerance to 6H.
Max depth 2.5 x D.

Dormer Taps

Dormer MTT-X Series taps are manufactured from HSS-X1 Steel with a Bright finish, they are right Hand Cutting.

Manufactured to ISO 529
Spiral Flute for threading blind holes.
Taper lead to DIN form C.
Tapping tolerance to 6H.
Max Depth 2.5 x D.
Helix angle 48.

For all technical and dimensional specifications please refer to our catalogue.

Dormer Taps

Dormer MTT-X Series taps are manufactured from HSS-X1 Steel with a Bright finish, they are right Hand Cutting.

Manufactured to ISO 529
Spiral Flute for threading blind holes.
Taper lead to DIN form C.
Tapping tolerance to 6H.
Max Depth 2.5 x D.
Helix angle 48.

For all technical and dimensional specifications please refer to our catalogue.

EX40 DIN 5156 Gold Spiral Flute BSP(G) Taps

Bright Finish