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TAPS & THREADING

 

Talk to us about resharpening your HSS & carbide taps, did you know it is economical from M16 upwards!!

 

CLICK HERE TO VIEW OUR "Recoil Screw Thread Inserts" PAGE

CLICK HERE TO VIEW OUR "Thread Restorers / Thread Files" PAGE


There is an enormous range of taps available at Miller’s Tooling.

Metric Coarse & Fine, UNC, UNF, BSW, BA, BSPT(Rc), BSPF(G), NPT,

Cycle threads, B.S.Brass just to name a few, even Left Hand or custom made taps are easy to source from us.

 

 Quality brands of taps include:

“Walter – Prototyp” Taps

“Walter – Titex” Taps & drills

“Dormer” Taps & cutting tools

“Goliath” Taps

“Sutton” Taps & cutting tools

“Capital” Taps & cutting tools

“P & N” Taps

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HAND TAPS

Hand taps can come in “carbon – alloy steel”, a cheap, one off Taps2.jpgtype.

The more reliable & suitable for serious engineering is High Speed Steel (HSS) taps. Hand tap sets contain x 3 taps; taper (starting), intermediate & bottoming (plug) taps. Using all 3 taps in series, tapping by hand, produces the tapped hole. Most tap sets or individual taps are stocked at Miller’s Tooling Pty Ltd.Taps3.jpg

 

Not as common, in Australia, are the European hand taps known as a “serial tap set”. These are a series of hand taps with a profile similar to ACME thread, the taper tap is of a minimal diameter, inter tap has a slightly larger diameter, and then the bottoming tap Taps4.jpghas a finishing diameter. These “serial taps” are also avail as well from Miller’s Tooling.

 

 

Drill / tap sets, tap & die sets as well as gun taps or spiral tap sets are avail in kits to suit most thread forms. We can tailor make sets for you.

 

The “combination drill-tapper” is handy for one quick operation mainly in sheet metal work.

 

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Goliath Logo.jpgCLICK HERE TO DOWNLOAD THE “GOLIATH” CATALOGUE

CLICK HERE TO DOWNLOAD TECHNICAL INFORMATION

 

 

 

 

 

Walter-Prototyp & Walter-Titex are German world leaders in taps & have a huge range of machine taps avail, including solid carbide taps tapping up to 60RC hardened steels & thru. coolant taps. Long & extended length machine gun nose & spiral flute taps are readily avail.

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 CLICK HERE TO GO TO “ Walter - PROTOTYP & TITEX” TAPPING CATALOGUES.

 

 

 

Machine taps are offered with coloured banding to denote what material it is best suited for. Prototyp & Titex has:

 

Green banded shanks best suited for all steels etc

Blue banded shanks best suited for stainless steel & tool steels

Yellow banded shanks best suited for aluminium

White banded shanks best suited for cast irons

 

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GUN NOSE TAPS

Gun nose taps are a ground machine tap best suited for “through holes” as gun taps push the swarf thru the hole. This reduces friction & heat of swarf binding on its way out therefore being a very strong tap. Gun taps can be used easily in lieu of hand taps, as the gun tap has an intermediate starting lead, only one tap is required & no backing off the gun tap is required, just keep the tap moving in a forward direction.

Best suited for tapping in lathes, drills & mills, a tapping head is the ideal scenario with auto reverse & clutch to prevent breakage. Most taps run at about 5 m/min however better quality Walter – Titex & Walter – Prototyp taps can run about 13 m/min or even up to 45m/min for their powder-metal “sprint” taps in steels.

 

 

SPIRAL FLUTE TAPS

Taps7.jpgSpiral taps are also machine taps suited for lathes, drills & mills. The spiral flute tap is best suited for “blind holes”.

The spiral flute & ground cutting edges creates the swarf to come back out the hole in controlled spiral swarf (like pigtails), this swarf evacuation allows no clogging & breakage of taps in the hole.

Walter – Titex & Walter – Prototyp can offer “sprint spiral flute taps” for high speed production tapping as well as Synchronised or non - Synchronised taps for appropriate feed rates on CNC machines.

 

 

COLDFORM or ROLLFORM / FLUTELESS TAPS

Taps8.jpgCold form taps (roll form taps) or (flute less taps) are all the same; HSS taps which actually cold form or forges the thread into a hole. Some “coldform” taps do have oil grooves in them to allow coolant into the hole, looking like flutes in the tap.

The finished tapped hole created by coldforming is a lot stronger than traditional cut tapped holes, due to material being pushed up, almost work hardened edges and no material has been removed. Coldform tapping is used mainly in a production environment for better quality threads, faster produced & higher tool life. The material being “formed” must be around 70% ductility. Aluminium is a great example.

 

NOTE: A larger tapping size drill is required for cold tapping, as material is forged rather than cut.

 

 

 

 

ORBITAL THREAD MILLINGTaps10.jpg

Taps9.jpgThe method of “orbital thread milling” is becoming very popular in Australia nowadays to cut threads in production very quickly, usually in just one pass in & out. Thread milling is using a solid carbide cutter looking & used like an endmill with fluted serrations and actually milling in a CNC machine centre to machine threaded holes, small as M1.6mm & much larger. For larger threads indexable threading inserts can be used.

 Thread milling requires simple programming on a CNC machine centre to correspond with the pitch of the thread. Feeding & ramping in the  threadmill cutter downwards the Z axis to one pitch, then ramping out to the centre of hole once depth has been reached, then exit the threadmill cutter vertically up.

 

Miller’s Tooling Pty Ltd can provide you with a written “G code” program from Walter-Prototyp for you to use on your various thread milling pitches at No Charge – just call us.

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TAP WRENCHES

Taps12.jpgT bar tap wrenches (both ratchet tap wrench & plain T tap wrenches) are stocked at Miller’s Tooling. We have a large collection of bar type tap wrenches & die stocks on the shelf.

 

 

 

 

 

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CLICK HERE for our range of tapping chucks & tapping heads, also our large range of thread go/no go & plug gauges on this website.

 

 

Taps16.jpgTapping fluids such as "Rapid Tap" tapping fluid or "Tapmagic" tapping fluid or heavier concentrated coolants (aprox. 10%) should be applied to all tapping applications. Rapidtap paste is also handy, it is like a grease compound to stay on a job or tap. 

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Types of taps available from Miller’s Tooling Pty Ltd

 

HAND TAPS

BOTTOMING TAPS

INTERMEDIATE TAPS

TAPER TAPS

MACHINE TAPS

GUN NOSE TAPS

(SPIRAL POINT)

SPIRAL FLUTE TAPS

LEFT HAND TAPS

OVER SIZED TAPS

NUT TAPS

FLUTELESS TAPS

DIN STANDARD TAPS

DRILL TAPS

CARBON TAPS

UNC TAPS

UNF TAPS

UNS TAPS

BSW TAPS

BSF TAPS

BSB TAPS

BA TAPS

BSP PARALLEL TAPS

BSPT TAPER TAPS

NPS AND NPSF TAPS

NPT AND NPTF TAPS

BSC TAPS

TRAPEZOIDAL TAPS

ACME TAPS

PG TAPS

TAP SETS