SHIRT FOR DRILL

SHIRT FOR DRILLRequired, when a small diameter drill bit fails to hold in the Chuck. But “sewing” it is better to “size” smaller: the nail or the drill navathe thinner copper wire — tightly, turn to turn, clockwise. Now, put the resulting spiral shank right drill: when the clamp and working the spiral to wedge and securely hold it in the Chuck.

 
Yuri ZHDANOV, Moscow

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