TECHNICAL INFORMATION

1.��Terminology�of�TapsTechnical-118.�Bar�diameter�of�external�threads� ��Technical-57
2��FlTechnical-2(for�thread�rolling�dies)
.��utes �������19.Surface�TreatmentTechnical-58
3.��Edge�angle�and�Cutting�allowance�of�tapsTechnical-320.Carbide�TapsTechnical-61
4.��Recommended�Tapping�SpeedsTechnical-421.Taps�for�Pipe�ThreadsTechnical-63
5.��Tapping�speed�and�Revolution�SpeedTechnical-522.Features�of�MC-Helical�Thread�MillsTechnical-72
6.��Tapping�Torque iTechnical-623.�Selecting�different�tap�holder�combinations�Technical-79
7.��Metric�Thread�and�Gauge�ProfileTechnical-9by�machine�feed�system
8.��Length�of�engagementTechnical-1124.�The�mechanism�for�a�tap�to�cut�oversize� ���Technical-81
9.��Classes�of�Internal�Threads�and�Technical-13on�an�internal�thread
�����Classes�of�Taps25.Trouble�ShootingTechnical-83
10.�About�UNJ�ThreadsTechnical-1826.Center�DrillsTechnical-87
11.�Class�of�external�threads�and� ��Technical-1927.Table�of�recommend�centering�conditionTechnical-88
class�of�Dies28.Thread�SeriesTechnical-90
12.Guide�to�Thread�Forming�Taps�(Roll�Taps) ����������Technical-2029.Basic�profile�of�threadsTechnical-92
13.�How�to�set�the�tap's�oversize�to�meet�with� the�coating�margin�of�internal�threads ��Technical-2230.�List�of�Thread�Standards�and�Nominal� Diameter�Ranges�of�YAMAWA�TapsTechnical-95
14.Tap,�Thread�Limits ������Technical-2331.Cross�chart�of�thread�cutting�tool�standardTechnical-98
15.�Bored�hole�size�before�tapping� (�for�thread�cutting�)Technical-3632.Hardness�conversion�tableTechnical-99
16.�Bored�hole�size�before�tapping� ���Technical-4833.Conversion�table�from�inch�to�millimeterTechnical-100
(�for�thread�forming�)34.�Chemical�Component�table�of�work�Technical-101
17.�Bar�diameter�for�external�threads�Technical-50materials
(for�cutting�type�dies)35.Materials�used�for�Cutting�ToolsTechnical-111

Technical Inf