HARFINGTON 20pcs Extra Long Drill Bits, 0.5mm HSS Drill Bit with High Speed Steel Straight Shank 100mm Length for Metal Woodwork Plastic Aluminum Alloy
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Special Features
Size - Cutting Diameter: 1.0mm / 0.04", Flute Length: 60mm / 2.4", Shank Diameter: 1.0mm / 0.04", Total Length: 100mm / 3.9", 20 x Extra Long Drill Bits
Material - These drill bits are made from high-speed steel for high hardness and durability, sturdy and having long service time.
Feature - The twist design is adopted to center the tool tip and improve the cutting accuracy. Prevents the bit from displacement during work, and removes debris and particles more easily.
Application - Long drill bits can be used for drilling into metal, wood, plastic, PVC. First use a common drill to drill holes, and then use an extended drill to pass through the holes.
Note - That the speed should not be too high to avoid breaking the drill.