Drill Bits
Cutting Edge Diameter: 2.5mm / 0.01"; Shank Diameter: 2.5mm / 0.01"
Cutting Edge Length: 130mm / 5"; Total Length: 200mm / 8"
Material: High Speed Steel
Package Included: 5pcs x Drill Bits

Bore Drill Stop:
Internal Diameter: 6mm / 0.24"; Thickness: 8mm / 0.3"
Material: Carbon Steel; Finish: Black Oxide
Package Included: 2pcs x Bore Drill Stops, 1pcs x Hex wrench

Descriptions:High speed steel drill bits have high hardness, good toughness, wear resistance, suitable for most general purpose applications. Widely used for drilling stainless steel, aluminum, iron, copper, wood and plastic. Suitable lubricant is conducive to cutting or cooling. Used on electric hand drill, drilling machine and bench drill. Sharp spiral flutes provide neat and smooth cuts. Spiral groove facilitates the export of metal chip, saving time and effort in operation. When using hand-held electric drill, the recommended speed is 100-1000rpm/min; the larger the drilling diameter, the slower the drilling speed. Drill metal with high hardness or foreign substance, the rotational speed should be slower than normal drilling.
Strong and durable steel with black-oxide finished for better corrosion-resistance. Drill stop bit can be quickly and easily adjusted at any point on drill bit flutes, helps to drill holes to exact depths, prevents under and over drilling. Set screw type will stay sturdy when tightened and is specially designed not to break the bits. Suitable for low axial loads and simple positioning. It is great for jobs that use a bit and need precision. For maximum holding power, make sure the set screw material is harder than your shaft material. Not move the drill bit stop after tightening.