Drill Overall Shank Neck

JIS ITRD Broken Tap Removal Tools

TYPE:1

Segment:52

Size Dc × Ds ×LCodeDc (mm)L (mm)Ds (mm)ℓn (mm)TYPEMSRP
For Metric Threads
6 × 8 × 60ITZ6.00ZPWSI6608301¥ 24,900 □
7 × 8 × 70ITZ7.00ZPWSI7708351¥ 30,100 □
8.5 × 10 × 75ITZ8.50ZPWSJ8.57510401¥ 36,900 □

■Notes ① Compatible machines include vertical type MC, NC, and milling machines. It cannot be used with a drilling machine. ② The depth of the tap to remove is 1.5D or less for spiral fluted taps or 1D or less for spiral pointed taps and hand taps. ③ Use a machine and tooling that have high stiffness. In addition, supply enough water-soluble cutting oil. ④ Although it is possible to remove a tap broken in forward tapping, ITRD cannot remove a tap broken in reverse tapping because the tap revolves and moves during removal. ⑤ The recommended material of workpiece is steel, which is high in cutting torque. For a soft material, such as aluminum, it is not possible to remove because the tap revolves and moves during removal. 【Broken during forward 【Broken during reverse tapping tapping motion】 motion or soft material】

G73 G83

(Does not return to point R) (Return to point R)

Fast feed Fast feed Cutting feed Cutting feed Return point

R point Return point R point
The tap is fixed becauseThe tap i s not fixed
there are no internalbecause there are some
thread ridges.internal thread ridges.
The tap will not revolveTherefore, the tap revolves
even if machining load isand moves during removal.
applied during removal.It cannot be machined.

Z point Z point Remarks: The internal threads may be broken after using the ITRD. Therefore, there is no guarantee of the internal thread quality after the tap removal.

Notes on use

◆Use a cover and wear safety goggles, because there is a danger of◆When attaching the tool to a machine, fix it firmly so that there is
damage.no rattle or runout.
◆Observe the proper cutting conditions, because there is a danger of◆Fix the workpiece firmly so that it does not move during
damage.machining. Do not use a tool showing signs of severe wear or
◆Never wear gloves while the tool is revolving, because theywith chipping on cutting edges.
might get caught.◆Be sure to take disaster prevention measures, because there is a
◆Wear safety shoes, because your foot might get injured by adanger of fire due to possible high temperature and heat
falling tool.generated during cutting.