GB/T 1132-2004 in English

《GB/T 1132-2004直柄和莫氏锥柄机用铰刀》由TC91（全国刀具标准化技术委员会）归口，主管部门为中国机械工业联合会。
本标准规定了直柄和莫氏锥柄机用绞刀的尺寸及标记示例。本标准适用于下列类型的绞刀：――直径大于1.32mm至20mm的直柄机用铰刀；――直径大于5.30mm至50mm的莫氏锥柄机用铰刀。本标准只规定米制尺寸，今后也只推荐米制尺寸。

Scope

This standard specifies the dimensions and marking examples of machine reamers with straight shank and Morse taper shank. This standard applies to the following types of reamers: ——Straight shank machine reamers with a diameter greater than 1.32 mm to 20 mm; ——Morse taper machine reamers with a diameter greater than 5.30 mm to 50 mm. This standard specifies only metric dimensions, and only metric dimensions are recommended in the future. For the above-mentioned types of reamers, this standard lists two tables, one is the preferred size and other corresponding sizes; the other is the size of the diameter segment. Tolerances are also specified for reamer length, cutting portion diameter, and shank diameter for straight shanks. These reamers are made right cutting unless otherwise stated. Straight groove or spiral groove is determined by the manufacturer.