Page 565 - Yamawa_European_Catalogue_YEU23
P. 565
h stock standard, ) check stock EU, f check stock JP, m stock exhaustion
CHECK PINS Intro
WATCH
THE VIDEO SP
Please check the hole size before tapping
Let's check the hole size before tapping 6H class internal threads of M6×1 by using Check-pin for cutting taps.
SL
∙ How to use CPC-S (Straight type)
STEP
1 Check the minor dia. for M6×1 6H internal thread PO
STEP ST
2 Size of the Check-pin for M6×1
d1 d2 Select the two Check-Pins closest to the max and
Size L ℓ DS (Percentage of thread (Percentage of thread min size of minor dia of 6H internal thread, referring
engagement) engagement)
to the table on the left. ROLL
4.917 (100%) 5.026 (90%)
4.917(100%) and 5.134(80%)
4.972 (95%) 5.080 (85%)
M6 ×1 73 16.5 6 5.026 (90%) 5.134 (80%) Depending on the feature of work-piece materials,
it is beneficial to tapping to make the hole size
5.080 (85%) 5.188 (75%)
before tapping as large as possible and within the
5.134 (80%) 5.242 (70%) tolerance. CARBIDE
STEP LONG
3 Insert the Check-pins and , selected in step 2.
4.917
5.134
GOOD The hole is finished within minor dia of 6H
(100%) (80%) class internal threads.
HAND
TAPS
̙
̙ You can easily check hole depth by
Check-pin smoothly goes Check-pin doesn't go ̙ the three lines marked on the pin. EG (STI)
into the bottom of the hole. into the hole.
SPECIAL
THREADS,
GAUGES
YMW
THREAD
MILLS
DIES
CENTER
DRILLS
Technical
info
563

