Feature

●Two-flute design, clears chips faster, smooth cutting. The drill tip adopts a 135°bifurcated tip design, prevents the step drill bit from slipping during operation.
●Titanium plating process to reduce friction and heat. high-speed steel construction and for longer cutting edge life even at extreme temperatures. performs well in heat, corrosion, and rust resistance.
●The step drill bit is durable and strong enough to punch and drill clean holes in materials like wood, plastic etc. It can also help to enlarge existing holes and clean edges.
●A necessity for family or handyman or professionals. Perfect for home repairs and light jobs such as drilling holes in aluminum, copper, Wood, PVC sheet, Insulation Boards, and many other types of sheet metal.
●Suitable for hand-held drilling rigs, drilling machines, milling machines, and machining centers, for metal sheet, maintenance, and modification, bridge doors, and windows, home appliances, etc.


Description

Ideal for using to cut holes in a variety of materials including aluminum, Wood Board, plastic, sheet metal, PVC board that thickness is within 5 mm

A variety of diameter sizes of drilling, reaming, chamfering, deburring, and drilling，A ladder drill can meet your different needs.

Unique step structure, one drill can open various sizes of aperture, a ladder drill to a box bit.

Scope of application: automotive sheet metal, repair, and modification, bridge doors, and windows, home appliances.

Can be used for the following equipment: hand-held drilling machine, drilling machine milling machine, machining center.

Titanium alloy coating reduces friction and they are more durable than uncoated drill bits.HSS(High-speed steel) has a longer service life.

Note:

During the operation, water must be injected to cool the drill bit. During the operation, the high-temperature smoke is easy to be annealed, to avoid reducing the service life of the drill bit.

When in use, the metal thickness must not exceed 3 mm.

Please keep it properly preserved. Avoid falling the bits from a high place.

Package includes:

5 step drill bit: 4-12 mm (4 mm, 6 mm, 8 mm, 10 mm, 12 mm)

9 step drill bit: 4-20 mm (4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm )

10 step drill bit: 3-12 mm (3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm)

A durable Oxford fabric storage bag