Features:
Made of HSS steel
Use to drill holes in a variety of materials including steel, brass, wood, plastic, etc.
Titanium coated to reduce moths and heat
Heat treated and highly polished.
Drills perfectly round holes in steel, brass, plastic, wood, etc.
3-sided shank design to prevent slipping during chuck
Two-flute design drives faster,
smoother and cleaner cuts, each step is clearly labeled with the depth diameter in steps
Function:
Deburring, chamfering, cutting or expanding holes
Support tools: pistol drill, hand drill, load drill, bench drill.
(Water injection cooling during work, it can effectively extend the service life of the drill,
particularly in the case of continuous drilling)
Package includes: Type 1:
3-12 4-12 4-20 Sachet
1 x drill bit 3-12 mm.
1 x drill bit 4-12 mm.
1 x drill bit 4-20 mm.
1 x bag.
Type2:
3-12 4-12 4-20
1 x drill bit 3-12 mm.
1 x drill bit 4-12 mm.
1 x drill bit 4-20 mm.
Type3:
4-6
1 x drill bit 4-12 mm.
Type4:
4/5 US
1 x drill bit 4-20 mm.
Type5:
4-6
1 x drill bit 4-32 mm.
Please note:
Due to the outer diameter of each step of the step drill,
then the corresponding cutting resistance and linear speed will also be gradually increased.
Since the step drill bit depends entirely on the sloping edge which is only 1mm in length,
If the feed speed is too fast when drilling,
there will be easily annealing caused by abrasion of the oblique edge.
Please give downward force when drilling,
Do not press too hard to avoid wear on the edge.
Suitable material:
General hardness parts, such as wood, plastic, PVC plate, iron plate, plate thickness
in the 3MM. Please note that stainless steel and spring steel are not
in force. Not for soaking.
(Water injection cooling during work, it can effectively extend the service life of the drill, especially in the
continuous drilling case)
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Chemical of High Concern: None
Origin: Mainland China
DIY Supplies: Carpentry
Material: High Speed Steel
Type: Core Drill Bit
Use: Wood drilling