NACHEE 3Pcs Titanium Coated Step Drill Bit Set, HSS Cone Drill Bit with 1/4″ Hex Shank Drive Quick Change (Metric 3-12 mm 4-12 mm 4-20 mm)for DIY Woodworking, Metal, Plastic Wood

Amazon.com Price: $8.99 (as of 03/05/2021 04:57 PST- Details)

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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.

Description

Ideal for the usage of to cut holes in quite a few 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 quite a lot of 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’re more durable than uncoated drill bits.HSS(High-speed steel) has a longer service life.

Note:

During the operation, water should be injected to cool the drill bit. All the way through the operation, the high-temperature smoke is easy to be annealed, to Keep away from reducing the service life of the drill bit.

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

Please keep it properly preserved. Keep away from 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

Make sure this fits by entering your model number.
Two-flute design, clears chips faster, smooth cutting. The drill tip adopts a 135°bifurcated tip design, prevents the step drill bit from slipping All the way through 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 metal, wood, and so on. It can also help to enlarge existing holes and clean edges.
A necessity for circle of relatives or handyman or professionals. Perfect for home repairs and light jobs such as drilling holes in aluminum, copper, Wood, PVC sheet, Insulation Boards, and plenty of 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, and so on.

Additional information

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