
Spiral Fluted Tap Series
ISP
Spiral Pointed Taps Spiral Fluted Taps Spiral Fluted Taps
(for blind hole)
Spiral Fluted 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 ISP
●ISP is the best tap for blind holes to be used on the lower ●Start tapping after boring holes corresponding to the thread
cutting speed with drilling machines. size by using drills.
●Use for threading of iron (SPC or SS400) products used in ●In the case of tapping with drilling machines, recommended
Cemented
Carbide Taps
our daily life. tapping speed is slower than 5m/min.
●Surface treated. Oxidization, the most suitable surface ●During tapping, please use tapping oil.
treatment for iron products.
●Suitable for internal thread
cutting in small quantity, such as
Roll Taps
tapping of test pieces.
●Having spiral flutes, ISP ejects
chips backward against the
tapping direction and is for blind
hole use.
Special Thread Taps
Pipe Taps Simple Inspection Tools
Tapping for blind holes
When hand tapping, always Machine tapping with drilling
use tap wrench machine
■Table for bored and drilled hole sizes unit:mm
Minor diameter of internal thread size Blister Pack
Thread
Size Minimum Maximum tolerance Drill size
engagement
tolerance 6H (2nd class) 7H (3rd class)
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
Thread Mills
4.917 5.153 5.217 5.1(5.0) 83%(92%)
M8 × 1.25 6.647 6.912 6.982 6.9(6.8) 91%(89%) fer
M10 × 1.5 8.376 8.676 8.751 8.6(8.5) 86%(92%)
5
note1) Recommended drill sizes shown in this table are for internal threads of 7H class(3rd class), and
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).
Dies
【Related products】
Shank adjuster
●For deep hole tappings, please use shank adjusters.
Center Drills
●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.
*For details of shank adjuster, refer to P.545
Centering Tools
Obtainable from
Video site shown in right
JIS
SP-1
318 For improvement, spec may change without advance notice.