HSS Titanium Step Drill Bit Conical Stage Drill For Metal Wood High Speed Stepped Drill Set Power Tools 3 12 4 12 4 20 4 32mm
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613.00 313.00 บาท
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- Brand Name：Tooleye
- DIY Supplies：Metalworking
- Type：Core Drill Bit
- Origin：Mainland China
- Material：High Speed Steel
- Use：Metal Drilling
- Features:
- Brand New and High Quality
- Made from high quality HSS steel
- Ideal for using to cut holes in a
- variety of materials including steel brass wood plastic etc.
- Titanium coated to reduce mit and heat
- Heat treated and highly polished.
- Drills perfectly round holes in steel brass plastic wood etc.
- 3 sided shanks design in order to prevent slippage when in chuck
- Two flute design drives faster
- smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps
- Function:
- Deburring ChamferingCutting or expanding holes
- Supporting tools: Pistol drillHand drill Charging drill Bench drill.
- (Water injection cooling while working it can effectively extend the service life of the drill bit
- especially in the case of continuous drilling)
- Package include:
- Type1:
- 3-12 4-12 4-20 bag
- 1 x Drill Bit 3-12mm
- 1 x Drill Bit 4-12mm
- 1 x Drill Bit 4-20mm
- 1 x Bag
- Type2:
- 3-12 4-12 4-20
- 1 x Drill Bit 3-12mm
- 1 xDrill Bit 4-12mm
- 1 xDrill Bit 4-20mm
- Type3:
- 4-12
- 1 xDrill Bit 4-12mm
- Type4:
- 4-20
- 1 x Drill Bit 4-20mm
- Type5:
- 4-32
- 1 x Drill Bit 4-32mm
- Attention:
- Because of the outer diameter of each step of the step drill is gradually expanded
- then the corresponding cutting resistance and linear velocity will also be gradually increased.
- Owing to the step drill is completely dependent on the inclined edge that is only with 1mm length
- If the feed speed is too fast when drilling
- it will be easily to be annealing caused by abrasion of the oblique edge.
- Please give a downward force when drilling
- do not press down too hard to avoid the edge wearing.
- Suitable material:
- Workpieces with general hardness such as wood plastic PVC plate iron plate plate thickness
- within 3MM. Please note that stainless steel and spring steel are not
- applicable. Not for quenching.
- (Water injection cooling while working it can effectively extend the service life of the drill bit especially in the
- case of continuous drilling)
