Обший каталог Yamawa 2016 - 2017 - страница 430

Hand Tap Series
Spiral Pointed Taps Spiral Fluted Taps Spiral Fluted Taps
(for blind hole)


IHT
Hand Taps for General Purpose
Specification
(for through hole)


2D
Oxide

Recommended Tapping Speeds depending on Materials
(for through hole)


ow carbon steels
〜
5
For icon explanation, refer to P.50
Hand Taps


Product features How to use IHT
●IHT is for hand tapping and for re-threading, and is used for ●Start tapping after boring holes corresponding to the thread
both through hole and blind hole. size by using drills (note: For drill sizes, refer to drill sizes
Cemented
Carbide Taps


●Use for threading of the iron (SPC or SS400) products used shown in the bored hole size table.)
in our daily life. ●On Hand Tapping, operate tapping in an upright position
●Surface treated. Oxidization, the most suitable surface parallel to bored holes by using tap wrenches.
treatment for iron products. ●During tapping, please use tapping oil.
●Suitable for internal thread cutting in small quantity, such as
Roll Taps


tapping of test pieces.
●The 5 thread chamfer is recommended for through holes
and 2 thread chamfer is recommeded for blind holes.
Special Thread Taps
Pipe Taps Simple Inspection Tools


Through hole = 5 thread type Blind hole = 2 thread type When hand tapping, always use Machine tapping with drilling
tap wrench machine
■Table for bored and drilled hole sizes unit：mm Blister Pack
Minor diameter of internal thread size
Thread
Size Minimum Maximum tolerance Drill size
engagement
tolerance 6H (2nd class) 7H (3rd class)
Thread Mills


M3 × 0.5 2.459 2.599 2.639 2.6（2.5） 74%（92%）
M4 × 0.7 3.242 3.422 3.466 3.4（3.3） 79%（92%）
M5 × 0.8 4.134 4.344 4.384 4.3（4.2） 81%（92%）
M6 × 1 4.917 5.153 5.217 5.1（5.0） 83%（92%） fer
M8 × 1.25 6.647 6.912 6.982 6.9（6.8） 91%（89%）
5
M10 × 1.5 8.376 8.676 8.751 8.6（8.5） 86%（92%）
note1) Recommended drill sizes shown in this table are for internal threads of 7H class（3rd class), and
Dies


are selected from the standard drills available in the market.
note2) Drill sizes shown in brackets in this table are for such case as the drilling has oversize cutting
tendency or for internal threads of 6H class（2nd class).

【Related products】
Center Drills


Shank adjuster
●For deep hole tappings, please use shank adjusters.
●There is only a one touch motion required to detach and attach
the I series taps (IHT/ISP/IPO) from or to the shank adjuster.
Centering Tools


＊For details of shank adjuster, refer to P.545

Obtainable from
Video site shown in right
JIS
HT-1
426 For improvement, spec may change without advance notice.