<?xml version="1.0" encoding="UTF-8"?><toc><section id="sec_foreword"><title>Foreword</title></section><section id="sec_intro"><title>Introduction</title></section><section id="sec_1"><label>1</label><title>Scope</title></section><section id="sec_2"><label>2</label><title>Normative references</title></section><section id="sec_3"><label>3</label><title>Starting elements, coordinate systems, planes</title><section id="sec_3.1"><label>3.1</label><title>General</title></section><section id="sec_3.2"><label>3.2</label><title>Reference system (PCS — primary coordinate system)</title></section><section id="sec_3.3"><label>3.3</label><title>Tool item position</title><section id="sec_3.3.1"><label>3.3.1</label><title>Prismatic tool position</title></section><section id="sec_3.3.2"><label>3.3.2</label><title>Round tool position</title></section></section><section id="sec_3.4"><label>3.4</label><title>Planes</title></section><section id="sec_3.5"><label>3.5</label><title>Cutting reference point (CRP)</title></section><section id="sec_3.6"><label>3.6</label><title>Design of the pocket seat</title></section><section id="sec_3.7"><label>3.7</label><title>Adjustment coordinate system on workpiece side</title><section id="sec_3.7.1"><label>3.7.1</label><title>General</title></section><section id="sec_3.7.2"><label>3.7.2</label><title>Designation of the coordinate system workpiece side</title></section></section></section><section id="sec_4"><label>4</label><title>Design of the model</title><section id="sec_4.1"><label>4.1</label><title>Necessary parameters for the connection interface feature</title></section><section id="sec_4.2"><label>4.2</label><title>Necessary properties for insert and pocket seat</title><section id="sec_4.2.1"><label>4.2.1</label><title>General</title></section><section id="sec_4.2.2"><label>4.2.2</label><title>Properties for equilateral, equiangular and equilateral, non-equiangular inserts</title></section><section id="sec_4.2.3"><label>4.2.3</label><title>Properties for non-equilateral, equiangular and non-equilateral, non-equiangular inserts</title></section><section id="sec_4.2.4"><label>4.2.4</label><title>Properties for round inserts</title></section><section id="sec_4.2.5"><label>4.2.5</label><title>Design of the pocket seat feature</title></section></section></section><section id="sec_5"><label>5</label><title>Tool holder for longitudinal and transversal turning</title><section id="sec_5.1"><label>5.1</label><title>General</title></section><section id="sec_5.2"><label>5.2</label><title>Necessary properties</title></section><section id="sec_5.3"><label>5.3</label><title>Basic geometry</title></section><section id="sec_5.4"><label>5.4</label><title>Turning tool with pocket seat and top surface offset</title></section><section id="sec_5.5"><label>5.5</label><title>Turning tool assembly</title></section><section id="sec_5.6"><label>5.6</label><title>Boring bar body</title></section></section><section id="sec_6"><label>6</label><title>Turning tool for external threading</title><section id="sec_6.1"><label>6.1</label><title>General</title></section><section id="sec_6.2"><label>6.2</label><title>Necessary properties</title></section><section id="sec_6.3"><label>6.3</label><title>Basic geometry</title></section><section id="sec_6.4"><label>6.4</label><title>Turning tool with pocket seat and top surface offset</title></section><section id="sec_6.5"><label>6.5</label><title>Turning tool assembly</title></section></section><section id="sec_7"><label>7</label><title>Boring bar for internal threading</title><section id="sec_7.1"><label>7.1</label><title>General</title></section><section id="sec_7.2"><label>7.2</label><title>Necessary properties</title></section><section id="sec_7.3"><label>7.3</label><title>Basic geometry</title></section><section id="sec_7.4"><label>7.4</label><title>Boring bar with pocket seat and top surface offset</title></section><section id="sec_7.5"><label>7.5</label><title>Boring bar assembly</title></section></section><section id="sec_8"><label>8</label><title>Turning tool for OD grooving and parting</title><section id="sec_8.1"><label>8.1</label><title>General</title></section><section id="sec_8.2"><label>8.2</label><title>Necessary properties</title></section><section id="sec_8.3"><label>8.3</label><title>Basic geometry</title></section><section id="sec_8.4"><label>8.4</label><title>Grooving tool with pocket seat and top surface offset</title></section><section id="sec_8.5"><label>8.5</label><title>Grooving and cut-off tool assembly</title></section></section><section id="sec_9"><label>9</label><title>Boring bar for ID grooving</title><section id="sec_9.1"><label>9.1</label><title>General</title></section><section id="sec_9.2"><label>9.2</label><title>Necessary properties</title></section><section id="sec_9.3"><label>9.3</label><title>Basic geometry</title></section><section id="sec_9.4"><label>9.4</label><title>Boring bar with pocket seat and top surfaces</title></section><section id="sec_9.5"><label>9.5</label><title>Grooving boring bar assembly</title></section></section><section id="sec_10"><label>10</label><title>Pull back boring bar</title><section id="sec_10.1"><label>10.1</label><title>General</title></section><section id="sec_10.2"><label>10.2</label><title>Necessary properties</title></section><section id="sec_10.3"><label>10.3</label><title>Basic geometry</title></section><section id="sec_10.4"><label>10.4</label><title>Boring bar with pocket seat and top surfaces</title></section><section id="sec_10.5"><label>10.5</label><title>Pull back boring bar assembly</title></section></section><section id="sec_11"><label>11</label><title>System tool for external turning</title><section id="sec_11.1"><label>11.1</label><title>General</title></section><section id="sec_11.2"><label>11.2</label><title>Necessary properties</title></section><section id="sec_11.3"><label>11.3</label><title>Basic geometry</title></section><section id="sec_11.4"><label>11.4</label><title>System tool with pocket seat and top surfaces</title></section><section id="sec_11.5"><label>11.5</label><title>Assembly of system tool for external turning</title></section></section><section id="sec_12"><label>12</label><title>System tool for external threading</title><section id="sec_12.1"><label>12.1</label><title>General</title></section><section id="sec_12.2"><label>12.2</label><title>Necessary properties</title></section><section id="sec_12.3"><label>12.3</label><title>Basic geometry</title></section><section id="sec_12.4"><label>12.4</label><title>System tool with pocket seat and top surfaces</title></section><section id="sec_12.5"><label>12.5</label><title>Assembly of a system tool for external threading</title></section></section><section id="sec_13"><label>13</label><title>System tool for internal turning</title><section id="sec_13.1"><label>13.1</label><title>General</title></section><section id="sec_13.2"><label>13.2</label><title>Necessary properties</title></section><section id="sec_13.3"><label>13.3</label><title>Basic geometry</title></section><section id="sec_13.4"><label>13.4</label><title>System tool with pocket seat and top surfaces</title></section><section id="sec_13.5"><label>13.5</label><title>System tool for internal turning assembly</title></section></section><section id="sec_14"><label>14</label><title>System tool for internal threading</title><section id="sec_14.1"><label>14.1</label><title>General</title></section><section id="sec_14.2"><label>14.2</label><title>Necessary properties</title></section><section id="sec_14.3"><label>14.3</label><title>Basic geometry</title></section><section id="sec_14.4"><label>14.4</label><title>System tool with pocket seat and top surfaces</title></section><section id="sec_14.5"><label>14.5</label><title>System tool for internal threading assembly</title></section></section><section id="sec_15"><label>15</label><title>System tool for OD grooving and/or cut-off</title><section id="sec_15.1"><label>15.1</label><title>General</title></section><section id="sec_15.2"><label>15.2</label><title>Necessary properties</title></section><section id="sec_15.3"><label>15.3</label><title>Basic geometry</title></section><section id="sec_15.4"><label>15.4</label><title>Grooving tool with pocket seat and top surface offset</title></section><section id="sec_15.5"><label>15.5</label><title>System tool for OD grooving and parting assembly</title></section></section><section id="sec_16"><label>16</label><title>System tool for ID grooving</title><section id="sec_16.1"><label>16.1</label><title>General</title></section><section id="sec_16.2"><label>16.2</label><title>Necessary properties</title></section><section id="sec_16.3"><label>16.3</label><title>Basic geometry</title></section><section id="sec_16.4"><label>16.4</label><title>Grooving tool with pocket seat and top surface offset</title></section><section id="sec_16.5"><label>16.5</label><title>System tool for ID grooving assembly</title></section></section><section id="sec_17"><label>17</label><title>Pull back system tool</title><section id="sec_17.1"><label>17.1</label><title>General</title></section><section id="sec_17.2"><label>17.2</label><title>Necessary properties</title></section><section id="sec_17.3"><label>17.3</label><title>Basic geometry</title></section><section id="sec_17.4"><label>17.4</label><title>System tool with pocket seat and top surfaces</title></section><section id="sec_17.5"><label>17.5</label><title>Pull back system tool assembly</title></section></section><section id="sec_18"><label>18</label><title>System tool, neutral design for OD turning</title><section id="sec_18.1"><label>18.1</label><title>General</title></section><section id="sec_18.2"><label>18.2</label><title>Necessary properties</title></section><section id="sec_18.3"><label>18.3</label><title>Basic geometry</title></section><section id="sec_18.4"><label>18.4</label><title>System tool with pocket seat and top surfaces</title></section><section id="sec_18.5"><label>18.5</label><title>System tool, neutral design for OD turning assembly</title></section></section><section id="sec_19"><label>19</label><title>Design of details</title><section id="sec_19.1"><label>19.1</label><title>Basics for modelling</title></section><section id="sec_19.2"><label>19.2</label><title>Fixing threads for inserts</title></section><section id="sec_19.3"><label>19.3</label><title>Contact surfaces/drive keys — Orientation</title></section><section id="sec_19.4"><label>19.4</label><title>Chamfers and roundings</title></section></section><section id="sec_20"><label>20</label><title>Attributes of surfaces — Visualization of the model features</title></section><section id="sec_21"><label>21</label><title>Structure of the design elements (tree of model)</title></section><section id="sec_22"><label>22</label><title>Data exchange model</title></section><section id="sec_A"><label>Annex A</label><title>Mirror planes for left-handed tools (normative)</title></section><section id="sec_B"><label>Annex B</label><title>Information about nominal dimensions (informative)</title></section><section id="sec_bibl"><title>Bibliography</title></section></toc>