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stainless steels and other abrasive or difficult materials
The right hand spiral forces the swarf out of the hole and prevents the chips from clogging at the bottom of the hole or in the flutes
4/6 positive tooth configuration allows for fast
The toughened edge of the Tungsten tips gives excellent cutting life and consistent performance when compared to regular HSS slugger bits
This may be required to allow the correct seating for a countersunk head screw or to provide the lead in for a second machining operation such as tapping
Step Tip HSS Cobalt Drill Size:7.00mm Step Tip HSS Cobalt Drill stainless steels and other abrasiveBordo Metric Cobalt Tough HSS Co5 Step Tip Extreme Performance Drill. Super fast drilling in ferrous & non ferrous metals and all timbers. Step Tip negates the need for a pilot drill in metals and provides extreme drilling speeds in ferrous and non ferrous metals & all timbers. 1 4 hex shank is ideal for use with impact drivers, quick change adaptors and bit holders. Cobalt HSS Twist drills are extremely hard and provide superior performance and
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