10Pcs 5.6mm Twist Drill High Speed Steel Bit, Mini Twist Drill Bits Set, Jobber Small Twist Drill Bits, Bettomshin Twist Drill, HSS-4241 Twist Drill Bit Set, for Steel Aluminum Alloy

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SKU:
ZD42906
Condition:
New
Availability:
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Bettomshin 5.6mm Twist Drill High Speed Steel Bit Technical Parameters Bit Diameter: 5.6mm / 0.22 inch Shank Diameter: 5.6mm / 0.22 Material: High Speed Steel 4241 Surface Treatment: Grind and Heat Treatment Color: Silver HRC: 62-63 Package Content 10 Pcs x Twist Drill How to Use Twist Drill Bits *Ensure the left and right cutting edges of the drill are symmetrical when drilling. *Observe the uniformity of the spark while drilling, adjust the pressure in time, and pay attention to the cooling of the bit.