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⓵ A variety of diameter sizes of drilling, reaming, chamfering, deburring and drilling，A ladder drill can meet your different needs.
⓶ Unique step structure, one drill can open various sizes of aperture, a ladder drill to a box bit.
⓷ Scope of application: automotive sheet metal, repair and modification, bridge doors and windows, home appliances.
⓸ Can be used for the following equipment: hand-held drilling machine, drilling machine milling machine, machining center.
⓵ Material: Titanium Coated High Speed Steel
⓶ Type of Slot: Spiral Groove
4-12, 9 Steps (Diameter 4, 5, 6, 7, 8, 9, 10, 11, 12mm)
4-20, 9 Steps (Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20mm)
4-32, 15 Steps(Diameter 4, 6, 8, 10, 12, 14, 16, 18,
20, 22, 24, 26, 28, 30, 32mm)
⓸ Weight: 225.8g
⓹ Package: 3Pcs spiral step drill bits,600D Oxford storage bag
Titanium coating ensures excellent durability and sharpness, which reduces friction and reduces operating temperature.
Using the classic high speed steel structure, it has longer service life, ensures easy cutting of stainless steel plate, aluminum plate, copper, plastic and wood plate,
as well as many other types of sheet metal, and can automatically deburring when drilling to keep the drill bit a little clean.
135 degree bifurcated tip and spiral double groove design improve cutting speed and prevent slipping during operation.
The spiral design, which has two chip removal grooves, helps to remove chips and debris from the bit, reduces friction and heat, and enables faster and cooler drilling.
The drill can quickly remove them and leave clean, smooth holes.
Each bit has a corresponding digital size, which can provide accurate positioning assistance.
Numerical control laser engraving is adopted to make the mark clear, and it will not fade with long time use.
And it is non-contact processing, which will not cause mechanical extrusion or mechanical stress to the material. No "knife mark", no damage to the surface of the workpiece; no deformation of the material.
Made of 600D Oxford cloth, it has the characteristics of thick, good elasticity, strong firmness, soft luster, waterproof and durability.
The storage bag is designed according to the size of the ladder drill, which does not take up space.
The design has three lattices, three ladder drills together to store, each time you use it, you don't have to worry about not finding one of them.
It's easy and convenient. It uses magnets to make buttons, even if it's stored by one hand.
Spiral Double Groove
INSTRUCTIONS for USE
• Use other tools to measure the diameter of the required hole size.
• Then select the corresponding size of the ladder drill to confirm which is the corresponding size.
• Install the step drill correctly on the electric drill, and finally aim at the position of the target hole, which is perpendicular to the workpiece, and then start drilling to the required size.
• During the operation, water must be injected to cool the drill bit. During the operation, the high temperature smoke is easy to be annealed,
so as to avoid reducing the service life of the drill bit.
•When used, the metal thickness shall not exceed 3 mm.
• When the new bit is running in the hole with low axial pressure and low rotation speed for 20-30 minutes, it should be gradually increased to normal axial pressure.
• When drilling a new hole with a new drill bit, it is necessary to remove the debris (rocks, scrap metals, etc.) around the hole. At the same time of rotation, ventilate slowly and close to the surface to prevent the bit from being knocked down and damaged by impact.
• When the drilling tool is in the hole, reverse rotation is strictly prohibited to prevent the bit from falling into the well.
• When the drill bit is in the hole and the air compressor stops working suddenly, rock slag is very easy to enter the drill bit. Therefore,it is strictly forbidden to rotate for a long time, resulting in bearing wear, rock slag repeated crushing (or sticking), and bit wear is accelerated.
Electrical Installation and Maintenance
Are you still bothered by the fact that the hole is too small to be drilled with other suitable bits?
There are ladder drill, a variety of sizes can be smoothly reamed for you, to your satisfaction size.
Furniture Manufacturing and Maintenance
If you want to make small tables and stools or other small furniture.
That's great!"p" Our products make your operation more convenient. "p" Let you do what you want to do.
Automobile Processing"p" If your car needs to be reworked, it needs to be punched. "p" This is definitely your best helper. "p" Help you punch faster and more easily. "p" Make your artifacts more perfect.
|"th" Spiral Step Drill Bits "th" Straight Step Drill Bits "th" Straight Step Drill Bits|
|Material||Titanium Coated High Speed Steel||Titanium Coated High Speed Steel||Titanium Coated High Speed Steel|
|Type Of Slot||Spiral Groove||Straight Groove||Straight Groove|
|Stronger Chip Removal Capacity||✓|