
Medium alloy steel and
| heat treated steel | High alloy steel | Tool steel | |||
| IS P | IS P | IS P | |||
| 10〜30 | 10〜30 | 10〜20 | |||
| (m/min) | (m/min) | (m/min) |
For icon explanation, refer to P.50 Product features ●Due to Yamawa's proprietary design, the tapping torque decreases. ●With a combination of wear-resistant tool material and a unique coating, the tool's durability improves tremendously.
●Consistent tapping of Heat treated steels(~35HRC) is ensured. ●Tapping with water soluble tapping fluid is possible.
MHRZ still runninstill runnin MHRZ Previous Tap
(N ) (N )
| previous tap | trouble at | 1st | tappi | ng |
| 0 | 200 40 | 0 | 600 | 800 1000(No. of holls) |
2500 9500 1500 8500
Tapping condition [ M12×1.5 ] 1000 1000
| Work material | 42 CrMo 4(Heat treated steels)/ 35HRC |
| Tapping speed | 20m/min |
| Hole size | φ11.3mm |
| Tapping length | 18mm, through hole |
| Machine l | MC(Synchronous feed) |
| Tapping fluid | Water soluble oil |
-500 -500 -1000 -1000
Consistent tapping in 42 CrMo 4(Heat treated steels ) at 35HRC becomes possible.
Application No more (Cutting tap)
worries!! entangled chips Tapping speed Materials Slow Fast
Thermal refined MHRZ steels
Alloy SCM ◆ By adopting roll taps, the worries about the problems steels HP+RZ caused by chips are completely solved.
High HP-RZ Internal thread Internal thread
| carbon | S45C | R+V | ||
| OL+RZ | ||||
| steels | R-V | by cutting tap by roll tap | ||
| OL-RZ | ||||
| Middle | S45C | |||
| N+RZ | ||||
| carbon | ||||
| steels | S30C | N-RZ |
5m/min 10m/min 15m/min 20m/min 25m/min 30m/min 35m/min ◆A great improvement in surface finish of internal threads