Drillpro 4-16.5mm HSS Step Drill Bit High Speed Steel Triangular Handle Spiral Groove Step Drill Bit

Descriptions 4 16 5mm High Speed Steel Triangular Handle Spiral Groove Step Drill Bit Specifications Color Silver as picture shown Material High Speed SteelSize Approx 122 X 98 X 12mmSteps 7 steps 4 6 8 10 12 14 16 5mmShank Diameter 12mmScop Thin iron plate aluminum PVC panelsFeatures High speed steel durable Multiple gauge aperture Widely used deburring chamfering open round hole Processing range aluminum iron ordinary steel plate thickness less than 5 mm can be used for bench drills Package Included 1 x Step Drill Note It is necessary to cool the drill bit during operation water injection cutting fluid can be used otherwise it will affect the service life of the drill bit even if it is burned the drill bit will be scrapped More Details