Description:

Description:

Material: HSS 4241 steel with titanium coating for strength and durability.
The spiral design prevents slipping and makes drilling easier.
The hex shank fits more easily and securely into all power tools, double-edged design to make cutting smoother, increases cutting speed with self-centering.
Step drill set used for steel, fine metal (thickness ≤ 5 mm), wood, fine iron, plastic, aluminium, PVC, fibreglass and other materials.
Include: step drill bits (4-12 / 4-20 / 4-32 mm) + 1 automatic centre punch + 1 storage bag.

Premium Material - 6542 HSS Carbide with a reinforced head that prevents bit cracking; Twist drill bit set made of hard and durable alloy, provides longer life.
Unique Design - U type slot design with fast drilling dust remove, antiskid triangle handle allows the drill bit to be held tightly and stable in a power drill.
Wide Usage - Spear pointed design strong tungsten carbide tip can easily penetrate various materials like tile, concrete, brick, glass, plastic, and wood, etc, and reduces breakout.
7 Different Sizes - 3mm,4mm,5mm,6mm(1/4"), 8mm(5/16"), 10mm(3/8"), 12mm(1/2").
Strong toughness and wear resistance, can be installed in electric drills.

Size Chart:

Step Drill:10.2x0.63cm/4.02x0.25inch, 0.76x0.63cm/0.3x0.25inch, 0.73x0.63cm/0.29x0.25inch

Centre Punch:13x1.2cm/5.12x0.47inch

Ultimate Drill:3/4/5/6/8/10/12mm

Package Includes:

3 Pieces Step Drill Bits

1 Piece Automatic Centre Punch+Storage Bag

7 Pieces Drill Bits