ชนิดของหัวสกรู(ไขควง)

ชนิดของหัวสกรู(ไขควง)

Drive Style

Hex Hex		accepts standard 6-pt, 12-pt, or open-end wrench.
One-Way		Basic slot has reverse side cammed so that screwdriver can only advance the screw and not back it out.
Phillips		Most recommended drive type. Sharp-cornered cross recess gives close fit and good control. Always use a driver bit in good condition
Slotted		Accepts standard blade screwdriver. Requires less downward pressure to drive slotted parts than it does those with crossrecessed openings. Use proper fitting blade to minimize slippage.
Spanner		Special unslotted screws surface, in Round undrilled, Flat drilled and others that require a special wrench.
Square		Square drive increases productivity with excellent torque transmission and resistance to cam-out.
Torx		Positive-engaging, fast-locating method of transmitting torque and optimizing worker efficiency. Reduces unauthorized removal. Requires Torx? driver