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مميزات خاصة
【DIFFERENT SIZES】: 4pcs HSS constructed drill bits for drilling holes with screw sizes #6,#8,#10 and #12
【SPECIAL DESIG】: Special designed steel counter sleeve countersinks or counter bores hole. Drill and countersink for wood screws without changing bits.
【SACCURACY】: These impact bits feature engineered no-skate tips for more accurate starts.
【PROTECTED】: With titanium coating shield, The drill bit set offers less friction than standard impact bits.
【MULTIPLE USES】:Suitable for drilling machines with interface, adjustable for workpieces with hardness below 25HRC, such as carbon steel, plastic, PVC board, wood board, etc.