About this item:
Prefect for Soft Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and many other type of sheet metal.Suitable for Home DIY, General Building and Engineering Use.
the step structure, a drill can drill a variety of sizes of the aperture.
You can deburring, chamfering, punching elliptical hole.
Suitable for installation in the pistol drill and bench drill.
the hardness of the workpiece below the use of 25 ° below, such as iron, aluminum, PVC board, insulation board, wood, workpiece thickness 4mm.
Features:
Brand New and High Quality
Made from high quality HSS steel
Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc.
Titanium coated to reduce mit and heat
Heat treated and highly polished. Drills perfectly round holes in steel, brass, plastic, wood etc.
3 sided shanks design in order to prevent slippage when in chuck
Two flute design drives faster, smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps
Function: Deburring, Chamfering, Cutting or expanding holes
Supporting tools: Pistol drill, Hand drill, Charging drill, Bench drill. (Water injection cooling while working, it can effectively extend the service life of the drill bit, especially in the case of continuous drilling)
Package includes:
1 x Drill Bit 3-12mm
1 x Drill Bit 4-12mm
1 x Drill Bit 4-20mm
1 x Bag
Attention:
Because of the outer diameter of each step of the step drill is gradually expanded,then the corresponding cutting resistance and linear velocity will also be gradually increased.
Owing to the step drill is completely dependent on the inclined edge that is only with 1mm length,If the feed speed is too fast when drilling,it will be easily to be annealing caused by abrasion of the oblique edge.
Please give a downward force when drilling, do not press down too hard to avoid the edge wearing.
Suitable material: Workpieces with general hardness, such as wood, plastic, PVC plate, iron plate, plate thickness within 3MM. Please note that stainless steel and spring steel are not applicable. Not for quenching. (Water injection cooling while working, it can effectively extend the service life of the drill bit, especially in the case of continuous drilling)
Very good quality set with a very nice little case.
Works great but only used it on heavy plastic to modify children's electric car.
Good quality, stays sharp, have not used long term, but for 5-6 projects worked 100%....great price for set also
A good quality. This tool worked exactly as I wanted... a hole the correct size and fast.
This is a high quality product that is worth purchasing for your tool set. Durable. Sharp. Visibly good quality.
I have found this titanium step drill set to be very useful when making holes in automotive applications. I have successfully been able to drill into everything from plastic to sheet metal with no issues. Recently, I used one of these bits to drill a hole into my dash board by my steering wheel in order to mount a SDST switch for a set of LEDs I was going to be mounting on my vehicle.
This was amazing! As an occasional do-it-yourselfer, I have struggled to drill through a stainless steel sink before to install a water filter faucet. It was always a real chore. This time I only needed a half inch hole through the sink so I used the center bit of this set--the one with all the smaller incremental steps, the largest being a half inch. I used the bit itself to mark the spot with a slow few turns. Then I applied just a dab of coconut oil, started to drill, and within 15 seconds I was through the sink with my half inch hole neatly drilled. It went through almost like it was butter! To say I was surprised was an understatement, but I guess when you have the right tool for the right job, it just works.
Found this drills very good quality for the price I paid. store recommended, very satisfied
I bought for making wholes in plastic and it works great.
These have always worked well for me. Recommend
Awesome value for the money. Great little set!
These seem to be very well made. The quality was better than what I was expecting..Very Nice !