Hand Taps -- A General Guide -- When To Use Which One

Standard Hand Taps

High Speed Steel Hand Taps with straight flutes are designed for general purpose hand tapping or in production machines where ground thread accuracy and performance are required. They are suitable for tapping most materials in through or blind holes. Hand taps retain chips in the flutes during use and work best on materials that produce chips and the swarf breaks easily. They are also known as Straight Flute Taps.

Left Hand Standard Hand Taps

High Speed Steel Left Hand Taps are designed to cut threads with a left hand rotation and are commonly used in applications where left hand studs and fasteners are needed.

Metric Standard Hand Taps

High Speed Steel Metric Hand Taps with straight flutes are designed for general purpose hand tapping or in production machines where ground thread accuracy and performance are required. They are suitable for tapping most materials in through or blind holes. Hand taps retain chips in the flutes during use and work best on materials that produce chips and the swarf breaks easily. They are also known as Metric Straight Flute Tap

Standard Hand Taps - +.005 Oversize Taps

Oversize taps are used primarily where a piece will be plated or heat treated after tapping. Oversize Taps are also known as Pre-Plate Taps.

Standard Hand Taps - Special Thread

Special Thread Hand Taps are designed for applications where standard coarse, fine, or extra-fine thread taps are not applicable or where design considerations require non-standard pitches. Most sizes are available in taper, bottoming, or plug chamfer. When taper or bottoming chamfer taps are not available in size ordered, plug chamfer taps will be substituted to complete order.

Standard Hand Taps (Metric) - Special Thread

Special Thread Metric Hand Taps are designed for applications where standard coarse, fine, or extra-fine thread taps are not applicable or where design considerations require non-standard pitches. Most sizes are available in taper, bottoming, or plug chamfer. When taper or bottoming chamfer taps are not available in size ordered, plug chamfer taps will be substituted to complete order.

 

Standard Hand Taps (Metric) - Left Hand

Metric Left Hand Taps are designed to cut threads with a left hand rotation and are commonly used in applications where left hand studs and fasteners are needed.












Ordering Special Reamers

Ordering Special Reamers

J.A.M. Taylor Tool Reamers

Special Reamers can be manufactured in any quantity from one piece to hundreds. As prices for specials are based on the quantities ordered, please contact our order desk for a quotation of your needs.

When ordering special reamers the more information we have will enable us to determine the correct tool for your application. Below is a list of information required to accurately quote:

Diameter of Reamer
Tolerance
Number of Flutes
Flute Length
Right or Left Hand Spiral
Length of Cut
Pilot Diameter & Length
Steps or Multiple Diameters
Type of Shank - Straight or Taper
Tapered Diameters            Large End            Small End
Degree of Taper
Tapered Flute Length
Chamfer Angle or Length
Any additional information

*****Submit drawings or prints if possible*****

Please sent completed form to sales@taylortool.com or  FAX to 519-658-6799

Ordering Special Dies

Special Dies can be manufactured in any quantity from one piece to hundreds. As prices for specials are based on the quantities ordered, please contact our order desk for a quotation of your needs.

When ordering special dies the more information we have will enable us to determine the correct tool for your application. Below is a list of information required to accurately quote:



Diameter
Pitch
Class of Fit
Right or Left Hand
Thread Form
Lead - Single, Double etc.
Solid or Split Adjusting
Material to be threaded
Cutting new threads or rethreading existing thread
Outside diameter & thickness of die
Length of part to be threaded
Special features which might affect the die

*****Submit drawings or prints if possible*****

Please sent completed form to sales@taylortool.com or  FAX to 519-658-6799

Blueprint Special Taps

Special Taps can be manufactured in any quantity from one piece to hundreds. As prices for specials are based on the quantities ordered, please contact our order desk for a quotation of your needs. Standard industry assumes a 10% over/under shipment for specialty manufactured tools. If over/under shipments are not acceptable please advise us at time of quotation.
When ordering special taps the more information we have will enable us to determine the correct tool for your application. Below is a list of information required to accurately quote:

Size and Pitch of Thread

Class of Fit or Gauge Tolerances

Right or Left Hand

Thread Form

Lead -- Single, Double etc.

Type of Material to be threaded --Grade, hardness and machining properties are all helpful

Type of hole to be threaded -- Thru or Blind, if blind advise amount of clearance at bottom of hole

Depth of hole to be threaded -- indicate any reach if applicable

Other features required-- keyways, threaded shanks, oil holes, stepped shanks, hex drives etc.

Coatings required -- TiN, CrN, TiCN, Nitride, Steam Oxide etc.

Will Machine or Fixture affect the length of tap(s)

Will tap pass through or back out

***Submit drawings or prints if possible***

Submit Completed Quote From to sales@taylortool.com Or FAX 519-658-6799

Standard System of Tap Marking --Thread Form Symbols -- Short Forms & Abbreviations

Standard System of Tap Marking

Thread Form Symbols

ACME-C Acme Thread- Centralizing

ACME-G Acme Thread - General Purpose
AMO American Standard Microscope Objective Thread


J.A.M TAYLOR TOOL M6 x 1.0 Metric D5 HSS GT 4 Flutes Taper Tap 8"

ANPT Aeronautical National Form Taper Pipe Thread (Ground thread tap marked NPT)
BA British Association Standard Thread
BSF British Standard Fine Thread
BSPP British Standard Pipe Parallel Thread
BSPT British Standard Pipe Taper Thread
BSW British Standard Whitworth Coarse Thread
M Metric Screw Thread Series
N American National 8, 12 and 16 Thread Series (8N, 12N, 16N)
N BUTT American Buttress Screw Thread
NC American National Coarse Thread
NEF American National Extra Fine Thread
NF American National Fine Thread
NGO National Gas Outlet Thread
NGT National Gas Taper Thread (see SGT)
NH American National Hose Coupling and Fire Hose Coupling Threads
NPS American National Pipe Straight Pipe Thread
NPSC American National Standard Straight Pipe Thread in Pipe Couplings (Tap marked NPS)
NPSF Dryseal American National Standard Fuel Internal Straight Pipe Thread
NPSH American National Standard Straight Pipe Thread for Hose Couplings
NPSI Dryseal American National Standard Intermediate Internal Straight Pipe Thread
NPSL American National Standard Straight Pipe Thread Loose Fitting Mechanical Joints with
Locknuts
NPSM American National Standard Straight Pipe Thread for Free-Fitting Mechanical Joints for
Fixtures (Tap marked NPS)
NPT American National Standard Taper Pipe Thread (See ANPT, NPTR)
NPTF Dryseal American National Standard Taper Pipe Thread
NPTR American National Standard Taper Pipe Thread for Railing Joints (Taps marked NPT)
NS American National Thread - Special


12 TAYLOR TOOL 1/4"-28 NF STI 3 Flutes GH-3 Bottom Hand Taps CANADA

12 TAYLOR TOOL 1/4"-28 NF STI 3 Flutes GH-3 Bottom Hand Taps CANADA

PG Panzer Gewindeboher
PTF Dryseal SAE Short Taper Pipe Thread
SGT Special Gas Taper Thread
SPL-PTF Dryseal Special Taper Pipe Thread
STI Screw Thread Insert Threads for Helical Coil Wire Inserts
*UN Unified Constant Pitch Thread Series
*UNC Unified Coarse Thread Series
*UNF Unified Fine Thread Series
*UNEF Unified Extra Fine Thread Series
UNJ Unified Thread Series with a 0.15011P to 0.18042P. Controlled Roil Radius on External
Thread only.
UNJC or UNJF Unified Thread Coarse or Fine Series with a 0.15011P to 0.18042P Controlled Root Radius on External Thread only.
UNM Unified Miniature Thread Series
UNR Unified Constant Pitch Thread Series with a 0.108P to 0.144P Controlled Root Radius;
External Thread only
UNRC or UNRF Unified Constant Pitch Coarse or Fine Thread Series with a 0.108P to 0.144P Controlled
Root Radius; Ext. Thread only
*UNS Unified Thread Special
V  60º thread with Truncated Crest and Root. The theoretical "V" Form is usually flatted to
the user's specifications.
WHIT British Standard Whitworth Special Thread

For More Information Please Visit Our website: www.taylortool.com