Features:
Manufactured from HSS steel
Used to cut holes in a variety of materials including steel, brass, wood, plastic, etc.
Titanium coated to reduce blackheads and heat
Heat treated and highly polished.
Drills perfectly round holes in steel, brass, plastic, wood, etc.
3-sided shaft design to prevent slipping in the chuck
The double-edged design ensures faster drives,
Smoother and cleaner cuts. Each step is clearly marked with the depth diameter in increments
Function:
Deburring, chamfering, cutting or expanding holes
Supporting tools: gun drill, hand drill, loading drill, bench drill.
(Water injection cooling during work, can effectively extend the life of the drill,
especially for continuous drilling).
Package Contents:Type 1:
3-12 4-12 4-20 bags
1 x drill bit 3-12 mm.
1 x Drill Bit 4-12mm
1 x drill bit 4-20 mm.
1 x bag.
Type 2:
3-12 4-12 4-20
1 x drill bit 3-12 mm.
1 x Drill Bit 4-12mm
1 x drill bit 4-20 mm.
Type 3:
4-12
1 x Drill Bit 4-12mm
Type 4:
4/20
1 x drill bit 4-20 mm.
Type 5:
4/6 UK
1 x Drill Bit 4-32mm
Attention:
As the outer diameter of each step of the step drill is gradually expanded,
then the corresponding cutting resistance and linear speed are gradually increased.
Since the step drill is completely dependent on the bevel edge only 1 mm long,
If the feed speed is too high when drilling,
Due to the abrasion of the slanted edge, it can easily get annealed.
Please apply a downward force when drilling,
Do not press down too hard to avoid wear of the edge.
Suitable material:
Workpieces with general hardness, such as wood, plastic, PVC board, iron plate, plate thickness.
Within 3 mm. Please note that this is not the case with stainless steel and spring steel
applicable. Not for quenching.
(Water injection cooling during work can effectively extend the life of the drill, especially in the
with continuous drilling).
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Chemical of particularly concern - None
Origin: Mainland China
DIY Supplies:Woodworking
Material: high-speed steel.
Type: Core Drill
Use: wood drilling