3pcs HSS Step Cone Drill Bit Cutter Titanium Large Set Tool 4-12/20/32mm

Description

Descriptions:
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.
Features:
1. The unique step structure, a variety of standard size drill carve aperture, a box arrived on a ladder drill bit.
2. Without the use of center punch, easy to break, a step drill specifications apply.
3. Deburring, chamfering, expanding the oval hole.
4. Small sway, without leading to use a center punch can carve out a nice aperture.
5. Surface treatment: Titanium.
Specifications:
4-32mm （ 4/ 6/ 8/ 10/ 12 /14 /16 /18 / 20 /22 /24 /26 /28 /30 / 32mm
4-20mm （ 4/ 6/ 8/ 10/ 12 /14 /16 /18 / 20mm)
4-12mm （ 4/ 6/ 8/ 10/ 12mm)
Package Included:
3× HSS Step Drill Bits