Feature: 1. Hex shank tap socket is made of alloy steel with high hardness and high wear resistance. The inside is square hole and durable to use 2. The square hole is embedded with washer to make the clamping more firm and can be used with a hand drill. 3. Widely used in mold manufacturing, pneumatic air batch, DIY, auto repair and other professional machine maintenance, etc. 4. Applicable to mold manufacturing and cleaning of external and internal teeth (painting) 5. Including 8pcs standards sockets, can meet different needs Specification: Item Type: Tap SocketMaterial: Alloy steel Standard: M4, M5, M6, M8, M10, M12, M14, M16Size: Approx. 20 x 30 x 6.35mm / 0.8 x 1.2 x 0.3inTap Style: Straight Groove M4x50L tap socket for 3MM machine taps on the opposite side M5x50L tap socket for right side 4MM machine tap M6x50L tap socket with inner washer for 4.8MM machine tap on the opposite side M8x50L tap socket with inner washer for 5MM machine tap on the opposite side M10x50L tap socket with inner washer for 6MM machine taps on the opposite side M12x50L tap socket with inner washer for 7MM machine tap on the opposite side M14x50L tap socket with inner washer for 9MM machine tap on the opposite side M16x50L tap socket with inner washer for 10MM machine tap on the opposite side Package List: 8 x Tap Socket