High Quality Material Ratchet tap holder is made of hard alloy steel with chrome plated finish and M3-M8 machine tap are made of HSS, which are durable with the feature of high hardness, non-deformation, anti-rust and anti-corrosion. Assisted Removable Pole Reversible ratchet tap holder can be slid to the other side for convenient position, even in a narrow space, you can use it without hindrance. T Ratchet Tap T handle ratchet tap holder can be operated with one hand, T-shaped design makes it easy to grip and use, smooth plating surface, comfortable to hold and can be easily operated with one hand. Ratchet Tap Set The sizes of the hand tap set are 3 mm 4 mm 5 mm 6 mm 8 mm, different sizes have different uses, you can choose the one you want Choose the size freely. Widely UsedTap holder is designed for use with taps and can also be used on left-hand tap, reamers, screw extractors and other square shank tools. Product Description: Tap ratchet, three-position gear for fast and efficient ratcheting. T-handle ratchet wrench is designed for use with taps and can also be used on left-hand tap, reamers, screwdrivers and other square shank tools. M3-m8 thread tap is used for general wood, soft metals, aluminum, acrylic sheets, printed circuit boards, in applications such as routine maintenance, repair work and rethreading. Specification: Adjustable Ratchet Tap Holder Material: Stainless Steel Hand Taps Material: HSS Size: 3mm 4mm 5mm 6mm 8mm Thread Diameter: 3mm, 4mm, 5mm, 6mm, 8mm Package Included: 1 x Adjustable Ratchet Tap Holder 5 x Hand Taps(M3 M4 M5 M6 M8) Operate the main point: 1. The right pit hole must first chamfer the chamfer 2. To use the drill collet holder tap 3. Press for vertical alignment operation 4. Cut in the rotation level 2-3 times 5. Confirm the vertical after cutting 6. Tap 3/4 turn after a quarter-back feeling 7. The level inversion withdraws after working 8. Remember that the cutting metal must be used with the oil Note: Manual measurement, please allow a slight error and check the size before purchasing.