Sherwood Taps

Sherwood HSS Taps are the general purpose option for thread cutting in most materials including steel, some stainless steels, cast irons and non-ferrous materials such as Aluminium, Brass and many others.

Manufactured with precision ground flutes for producing accurate thread forms, Sherwood Taps are available in all the popular thread forms and as straight Flute `Hand` Taps in 3 leads, Fluteless, Spiral Flute, or Spiral Point Machine Taps and also Long Series. Sherwood Taps dimensions conform to ISO529 apart from NPT Forms which conform to ANSI 94.9. Straight Flute and Fluteless Taps are manufactured with a standard Bright Finish whereas the Machine Taps have an Oxidised Finish for best results dissipating the heat build-up associated with these applications.

Thread Forms are Class 2 medium fit tolerance.

Ground Thread Left Hand Tap Sets Metric Coarse Straight Flute HSS

Each set of Sherwood taps contain one taper, second and plug lead tap:

Sherwood HSS Taper Taps are used to start cutting the thread. They are tapered back from the end 6 to 10 threads before a fully threaded diameter is reached. This allows the tap to be positioned easily and correctly before it starts to cut the thread.

The Second Tap is used after the taper tap has cut threads into the hole as far as possible. It tapers back 3 or 4 threads before full thread diameter is reached.

The Plug Tap cuts threads to the bottom of a blind hole. It is only necessary to use the full set of taps when a blind hole is to be tapped.

Sherwood Taps

Sherwood HSS Taps are the general purpose option for thread cutting in most materials including steel, some stainless steels, cast irons and non-ferrous materials such as Aluminium, Brass and many others.

Manufactured with precision ground flutes for producing accurate thread forms, Sherwood Taps are available in all the popular thread forms and as straight Flute `Hand` Taps in 3 leads, Fluteless, Spiral Flute, or Spiral Point Machine Taps and also Long Series.

Sherwood Tap dimensions conform to ISO529 apart from NPT Forms which conform to ANSI 94.9. Straight Flute and Fluteless Taps are manufactured with a standard Bright Finish whereas the Machine Taps have an Oxidised Finish for best results dissipating the heat build-up associated with these applications.

Thread Forms are Class 2 medium fit tolerance.

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

Plug Tap BSF (British Standard Fine) Straight Flute Ground Thread HSS

The Sherwood Plug tap is used last after the Taper and Second tap have been used, when threading blind holes it cuts threads to the bottom of the hole.

Sherwood NPT (National Pipe Taper) HSS Ground Thread Dies

BS 21

Swiss+Tech® Production Taps

Swiss+Tech® production spiral point taps are for threading through holes.
Manufactured from HSS-EV with an oxidised finish
Taper lead to DIN form B.
(3.5 x P to 5.5 x P).
Tapping tolerance to 6H.

Manufactured to DIN 371/376

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

Yellow Ring Spiral Point Metric Coarse Production Tap HSS-EV

OSG Taps

OSG type 1066 machine taps are manufactured from 3% Vanadium Super Grade High Speed Steel. Increasing the vanadium content improves the toughness without making the tap brittle. This means the tap has a greater resistance to work generated heat, which prolongs the life of the cutting edge.

Spiral Point taps are suitable for threading through holes.

Manufactured to ISO 529: 1975.

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

Spiral Point Taps Metric HSS-EV

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

Swiss+Tech® HSS "Purple Ring" Taps

Manufactured to DIN 371/376.

Left Hand Spiral Flute - HSS-PM Nitride Finish ISO metric Coarse

For through holes. Taper lead to DIN form D (5 x P). Tapping tolerance to 6HX 2BX. Helix angle 15°.

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.

EX01 Series Spiral Flute Metric Machine Tap

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

Sherwood Dies

Sherwood dies are for use in die stocks to cut external screw threads on metal rod, the split in the die allows the adjusting screws of the diestock to compress or expand the die to accommodate for slight variations in size of the material being threaded or die sharpness. Sherwood dies are available as Metric Fine, Metric Coarse, UNF, UNC, BA, BSF, BSW, BSPT, BSPF, NPT cutting threads all the dies are manufactured from HSS with precision ground threads to the applicable standard.

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

Dies UNF (Unified Fine) Ground Thread HSS

Thread form conforms to: ISO 529