16mm(5/8-Inch) Reduced Shank Drill Bit, 1/2” Shank High Speed Steel Twist Drill Bit HSS-4341 for Aluminum Plate Copper Wood Stainless Steel

Specification:   Product Name: Reduced Shank HSS Drill Bit   Drill Bit Diameter: 16mm/0.62"    Shank Diameter: 10mm/0.39"    Working Length: 78mm/3.07" Shank Length: 50mm/1.96" Total Length: 157mm/6.18"   Material: 4341 High Speed Steel   Weight: 139g   Package Content: 1 x Reduced Shank Drill Bit     Note:   1. When drilling, please ensure that the drill bit is installed in place without loosening.   2. Cutting speed should not be too high, to prevent burning, rate should not be too large, to prevent the drill wear.   3. Pay attention to safety during drilling, ensure protection.   4. As the manual electric drill is rotating too fast, please pay attention to speed regulation. The larger the drill diameter is, the slower the rotating speed is required.