ITEM NAME:10Pcs/Set Mini M1-M3.5 High Speed Steel Metric Thread Screw Tap Tool Descriptio n Description: 100% brand new and high quality Used for machining nuts or other common thread on the machine. Machine tap is usually used to refer to the tap of high speed steel. Suitable for tapping on the machine tool. Adopting high speed steel with high wear and heat resistant, which is durable and has long service life. 10 different sizes from M1 to M3.5 that you can use for tapping various threads. Standard thread distance design, clear and tidy, no burr. With these machine hand taps, you will have a smooth tapping experience with them. Specifications: Material: High-speed Steel Type Size: 1# M1, 2# M1.2, 3# M1.4, 4# M1.6, 5# M1.7, 6# M1.8, 7# M2, 8# M2.5, 9# M3, 10# M3.5 Dimensions: approx. 1#: 1x0.25mm(0.04x0.01in), length: 3.5cm(1.38in) 2#: 1.2x0.25mm(0.05x0.01in), length: 3.6cm(1.42in) 3#: 1.4x0.3mm(0.06x0.01in), length: 3.6cm(1.42in) 4#: 1.6x0.35mm(0.06x0.01in), length: 3.3cm(1.30in) 5#: 1.7x0.35mm(0.07x0.01in), length: 3.5cm(1.38in) 6#: 1.8x0.35mm(0.07x0.01in), length: 3.2cm(1.26in) 7#: 2x0.4mm(0.08x0.02in), length: 4cm(1.57in) 8#: 2.5x0.45mm(0.1x0.02in), length: 4.5cm(1.77in) 9#: 3x0.5mm(0.12x0.02in), length: 5.5cm(2.17in) 10#: 3.5x0.6mm(0.14x0.02in), length: 5.5cm(2.17in) Color: Silver Package Included: 1 set Screw Tap(10pcs) Note: 1.Due to the manual measurement and different measurement methods, the actual size could be slightly different. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. High quality buy, happy buyï ¼ 10Pcs/Set Mini M1-M3.5 High Speed Steel Metric Thread Screw Tap Tool.Type Size: 1# M1, 2# M1.2, 3# M1.4, 4# M1.6, 5# M1.7, 6# M1.8, 7# M2, 8# M2.5, 9# M3, 10# M3.5. 10 different sizes from M1 to M3.5 that you can use for tapping various threads. Suitable for tapping on the machine tool.