6 Packs Combination Drill & Taps Bit Set, Screw Tapping Threading Tools in Sizes M3*0.5 M4*0.7 M5*0.8 M6*1.0 M8*1.25 M10*1.5 with Anti-rust Black Coating, 6mm Hex Shank and Storage Case

Features:1.Combination Drill & Taps Bit Set can be used to tap various threads to meet different needs - including 6 SAE sizes:M3*0.5,M4*0.7,M5*0.8,M6*1.0,M8*1.25,M10*1.5.2.They are designed to drill, tap, deburr and counter holes on wood, copper, brass, aluminum, soft material metal sheet and plastic. 3.Equipped with6mm hex quick-change shank, they can work on Electric hand drill, impact drill, bench drill, electric screwdriver and other tap machines.4.They are designed to drill tap a hole through the workpiece, not suitable for drilling Blind holes (it will break the bit in drilling workpiece thick than its work range). With bench drill, they can drill 5mm thick maximum; with hand drill, they can drill 3mm thick maximum. 5.Advanced Black oxide coating technology give it rust prevention protection and classic appearance.User Guide：Following some technique will let you save the bit:1. Thin drill bits can break easily than thick bits, so drill more carefully while using a thinner drill bit, make sure it is perfectly straight.2. Before start drilling, use some cutting oil. It will not only allow to drill hole easily but keep the drill bit from snapping off. It will also keep the drill from getting overheated and damaged. 3. Don’t push with much pressure since it can damage the drill bit. 4. Slowly start drilling the intro surface and then gradually increase the speed. Drilling with high speed at starting point can cause slipping off.

• COMBINE DRILL and TAP at the same time - All in one and works great and save a lot of time and trouble when doing threads for hinges or other projects; No more using a drill to drill the hole and then tapping it out later with another tool
• HIGH VERSATILITY – Set of 6 drill tap bits in SAE sizes M3*0.5,M4*0.7,M5*0.8,M6*1.0,M8*1.25,M10*1.5, with 1/4inch hex quick-change shank, fit Electric hand drill, impact drill, bench drill, electric screwdriver and other tap machines
• HANDY TOOLS – These drill-tap bits are must have if you fabricate a lot; you can use them in aluminum, plastic, wood and other thin soft material metal panel; When you use it, make sure it is perfectly straight, take your time, go slow, use lubrication to prevent breaking the bit in the hole
• EASY TO USE - Each tap drill is engraved with its size convenient for you to choose the suitable size with a glance. A tapered end on hex shank can prevent excessive knocks; Back taper exceeds the tap to prevent over-drilling and damage to the thread
• WORRY-FREE – This Drill Tap Bits set comes with a portable storage case for convenient use and store. If you encounter any problems in using the products, please feel free to contact us for satisfactory customer service