M4-M16 Screw Tap Socket Adapter 1/4 Inch Hex Shank Machine Tap Square Driver Thread Tap Adapter for Electric Drill Description: M4-M16 Screw Tap Socket Adapter 1/4 Inch Hex Shank Machine Tap Square Driver Thread Tap Adapter for Electric Drill Specification: Material:alloy steel Shank: 1/4 Inch Hex Shank Size:4mm 5mm 6mm 8mm 10mm 12mm 14mm 16mm Fit for: M4, M5, M6,M8,M10,M12,M14, M16 Machine Tap Features: 1.The thread tapper adapter is made of alloy steel, high-hardness,wear-resistant and long service life. 2.The tapping chuck for 1/4'' hex shank 4mm 5mm 6mm 8mm 10mm 12mm 14mm 16mm diameter machine tap 3.The adapter square drive with built-in clamping clip,makes the tap die and socket adapter connection stronger and not easy to fall 4.The screw tap tapping chuck are suitable for machine taps,use for wind batches, electric batches, electric drills, etc. Package Included: 1 x Screw Tap Socket Adapter or 1Set(7pcs)x Screw Tap Socket Adapter or 1Set(8pcs)x Screw Tap Socket Adapter _x000D_