1. เลือกใช้ประแจที่มีขนาดของปากและค

First. Use a wrench the size of the mouth and the length of the handle that best suits the user. The handle should not be longer than usual
2. Mouth of the wrench must not wear such as worn or cracked diverging
3.When worn on the head nut wrench or screw up. Mouth of the wrench to tight fit and full head cover bolts
4.The wrench handle for right-handed The right hand holding the wrench. The left hand for a firm grip. The body must be in a stable condition and balance
5.Tightening wrench is tightened. Or just need a way to pull it toward you. Wrench while tightening the loose mouth and ready for a
6.Select the type of mouth was not such a spanner wrench wrench or a key ring. Wrench if these do not work, so I used a wrench, adjustable wrench, slide the lip instead
7.Using a wrench, adjustable wrench, move the mouth or a pipe wrench. I have to side with the sliding door always
8. Using adjustable wrench, the jaws. Adjustable wrench to tighten the head nut mouth first. Thus exert a gradual tightening
9.Dry mouth and the handle of the wrench must be free from oil or grease
10. Tightening the nut or screw in a narrow or deep. A box wrench. For the mouth of the long box wrench. Can be inserted into the holes confined to
11.Hair must be in the same plane with the spanner nut or screw head
12. Do not use mouth-type adjustable wrench with nut or screw heads to be reused because the screw head or nut is deformed.

1. use a wrench with the size of the mouth and butt length that fits the job. It should not be longer than 2 SDS Max, normal per
. The mouth of the wrench must not be damaged, such as machinists, to dilate or crack
3. When worn with a wrench head knot or head screw. The mouth of the wrench must fit tightly and cover the whole head
4. Holding a wrench for a right-handed grip, right hand to right hand end of the wrench. The left hand part fixed to the stable The body must be in a stable condition and balance
5. The tightening wrench, tighten, tightening or loosening must pull toward yourself and prepare for mouth wrench is dropped while tightening with a
6. Adjustable wrench, foot-and-mouth type should were not before, such as the mouth or ring wrench wrench died. If these wrench did not come to choose adjustable wrench pipe wrench, foot-and-mouth type move instead of
7. Use the adjustable wrench pipe wrench, foot-and-mouth types, such as moving or wrench catch paep. To give the mouth a scrollable box next to the user always
8. Using a wrench adjustable foot-and-mouth type. Need to adjust the mouth tightly with wrench head knot before tightening exert little
9. Mouth and butt of wrench must be dry, free of oil or grease
10. To tightening the knot or screws in narrow or deep, use a dash of Jae Pak Jae bok bok, because they can conform to the long into the hot hole.
11. While transporting Wrench must be the same plane with other head or head screw
12. Do not use a wrench with adjustable mouth type of knot or screw to reuse because of the loss of screw heads or other image.

1. Select the Use of fair size and the length of the lip of the right of the handle with the use of the handle should not be longer than normal
2. To be fair to the mouth of such as are not damaged or worn to widen the crack
3.When you wear a fair into the head knots or screw head, and then the mouth of a busy must be fit and cover the full knots
4.The grip on his coattails for a right-handed, with his right hand held the end of the left hand to shake the body must be in good condition, stable and secure balance
5.The fair is not that it would be a gamble to tighten or release must be used to pull it toward the mouth and always ready for a shake out while tightening with
6.It should be a fair adjustment of the mouth is not before such as a Ring or a fair shake his mouth to die if they are not busy, and then choose to use a fair adjustment of the mouth such as a busy slide instead of
7.The use of the mouth to be fair to be fair, as a slide or a fair แป๊ป must be held to the mouth of the slide is attached to the user is always
8. The use of a busy mouth. mouth to be fair to tighten the knots before the head, and then exert fasten
9.the mouth and the handle of a shake to dry without oil or grease
10.tighten the knots or the screw located in the narrow or deep, use a fair Bob because of his mouth to be fair to Bob long will be able to insert it into the hole, cramped.
11.When you head to shake must be in the same plane the head knots or screw head
12.You should not use a fair adjustment of the mouth with the knots or the screws that will be brought back to use again, because the knots or the screws will be out of shape