Stud Tool Set ชุดขันสกรู 4ชิ้น

Stud Tool Set ชุดขันสกรู 4ชิ้น สั่งซื้อที่ http://tenposhop.lnwshop.com/p/218 Stud Tool Set ชุดขันสกรู Screw Extractor Drill สิ่งที่จะได้ ชุดขันสกรู 4 ชิ้น Features: Rapid, portable, remove the screw ,pipe, bolts have been damaged. Conversion: 1inch=2.54cm, 1cm=0.393inches Size: package size 8.5*6*1.5cm Package include: 1SET Usage: 1, With the speed can be change and -direction of the electric drill. 2, the first thing to determine when using extractor and ensure the safety of the tool and will not be moving. 3, the screw head be damaged thicker than extractor , with the drilling head end drill a hole( deep enough) in the middle of the screw head. 4, reverse screw extractor and into the damaged screw counterclockwise, until removed.