IHT

Hand Taps for General Purpose

Specification

2D

Oxide

Recommended Tapping Speeds depending on Materials

ow carbon steels

〜5

For icon explanation, refer to P.50

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

  • 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 tapping of test pieces.
  • The 5 thread chamfer is recommended for through holes and 2 thread chamfer is recommeded for blind holes.
Through hole = 5 thread typeBlind hole = 2 thread typeWhen hand tapping, always useMachine tapping with drilling
tap wrenchmachine

■Table for bored and drilled hole sizes : Blister Pack

unit mm

SizeMinor Minimumdiameter of internal thre Maximumad size toleranceDrill size Th engaread ement
tolerance6H(2nd class)7H(3rd class)
M3×0.52.4592.5992.6392.6(2.5) 74%(92%)
M4×0.73.2423.4223.4663.4(3.3) 79%(92%)
M5×0.84.1344.3444.3844.3(4.2) 81%(92%)
M6×14.9175.1535.2175.1(5.0) 83%(92%)
M8×1.256.6476.9126.9826.9(6.8) 91%(89%)
M10×1.58.3768.6768.7518.6(8.5) 86%(92%)

fer

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).

【Related products】

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.

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