Step Up Drill Bit
3pcs Hex Shank Black Oxide High Speed Steel Step Cone Drill Bit with Spiral Flute
- HSS material provides high hardness, rustproof, solid, and durable quality.
- Black oxide coated can reduce friction and heat when drilling.
- 118-degree point tip can prevent walking when drilling and will increase the cutting speed.
- The double flute spiral blade design makes the cutting faster and smoother.
- Ideal for drilling 5mm aluminum, wood, sheet metal, plastic, etc.
- Product Details
- Factory
- Material
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Product Description
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More Choice For You: Home > Step Drill Bit
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Product Name
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3pcs Hex Shank Black Oxide High Speed Steel Step Cone Drill Bit with Spiral Flute
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Size
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4-12mm, 4-20mm, 4-32mm
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Material
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M2
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Flute Type
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Spiral Flute
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Flute Number
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Double Flute
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Shank
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Three Flats Shank
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Surface Finish
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Black Oxide
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Package
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3Pcs in One Box
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Spiral Flute Step Drills (Metric)
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Size (mm)
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Number of Steps
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L1 (mm)
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L2 (mm)
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D1 (mm)
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D2 (mm)
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4-12
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5
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62
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22
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12
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6
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4-12
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9
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71
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22
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12
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6
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4-20
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9
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71
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22
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20
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8
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4-22
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10
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85
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22
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22
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8
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6-30
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13
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93
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22
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30
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10
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4-32
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14
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99
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23
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32
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10
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4-39
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13
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108
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25
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39
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10
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5-35
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13
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73
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25
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35
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13
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10-45
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9
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98
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25
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45
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13
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6-60
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12
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113
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25
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60
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13
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Spiral Flute Step Drills (Inch)
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Size (inch)
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Number of Steps
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L1 (inch)
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L2 (inch)
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D1 (inch)
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D2 (inch)
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3/16-1/2
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6
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2 41/64
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7/8
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3/16-1/2
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1/4
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1/8-1/2
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13
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2 59/64
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7/8
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1/8-1/2
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1/4
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1/4-3/4
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9
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2 51/64
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7/8
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1/4-3/4
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3/8
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3/16-7/8
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12
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3
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7/8
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3/16-7/8
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3/8
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1/4-1 3/8
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10
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2 61/64
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7/8
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1/4-1 3/8
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3/8
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* Custom-tailor would be available against customers’ requirements
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