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By certification 
Basic Info
Model NO.: Step Drills
Material: M2, M35
Classification: Hammer Drill
Applications: Building and Industrial
Impact Drill Structure: Canines Style
Customized: Customized
Drill Brand: Ouke
Trademark: ouke
HS Code: 8202310000
Type: Gun Drill Bit
Use: Metal Drilling
Drill shape: Round
Impact Drill Head: Impact Drill
Specification: 49mm, CE
Condition: New
Flute: Spiral or Straight
Origin: Jiangsu, China
Product Description
Specifications
HSS Twist Flute Step Drills(4-32mm)
With Titanium coated
Hex quick change shank, straight flute
HSS Step Drill bits with straight flute, hex quick change shank
Cutting object: Metal sheet
Size arrange: From 4mm to 40mm
There is a table about the step drills with straght flute
HSS Step Drill Bits are perfect for drilling multiple-size holes in thin sections of metal, plastic and wood using a single bit.
Each step drills does the work of many drill-bit sizes. Drills round holes in most metals (steel, brass, aluminum, copper) up to 1/8" (3.2mm) thick as well as in plastic and wood.
No center punching or pilot hole drilling is required on most sizes. The bits are easy to keep sharp, and the hole size is easily determined by the diameter markings that are permanently laser-etched in the flute area.
Step drills are ground from solid high speed steel. A range of hole diameters can be drilled using only one tool and holes are deburred automatically by the following step.
*Suitable for drilling in alloyed and non alloyed steel sheet, pipes and profiles upto 900N/mm2 and upto a wall thickness of 5mm. Also suitable for wood and plastics.
HSS Twist Flute Step Drills(4-32mm)
With Titanium coated
Hex quick change shank, straight flute
HSS Step Drill bits with straight flute, hex quick change shank
Cutting object: Metal sheet
Size arrange: From 4mm to 40mm
There is a table about the step drills with straght flute
HSS Step Drill Bits are perfect for drilling multiple-size holes in thin sections of metal, plastic and wood using a single bit.
Each step drills does the work of many drill-bit sizes. Drills round holes in most metals (steel, brass, aluminum, copper) up to 1/8" (3.2mm) thick as well as in plastic and wood.
No center punching or pilot hole drilling is required on most sizes. The bits are easy to keep sharp, and the hole size is easily determined by the diameter markings that are permanently laser-etched in the flute area.
Step drills are ground from solid high speed steel. A range of hole diameters can be drilled using only one tool and holes are deburred automatically by the following step.
*Suitable for drilling in alloyed and non alloyed steel sheet, pipes and profiles upto 900N/mm2 and upto a wall thickness of 5mm. Also suitable for wood and plastics.
| Size | Steps | Shank dia | Overall Length |
| 4.0-12.00 | 5 | 6 | 65 |
| 4.0-12.00 | 9 | 6 | 65 |
| 4.0-20.00 | 9 | 8 | 75 |
| 4.0-30.00 | 14 | 10 | 100 |
| 6.0-38.00 | 12 | 10 | 100 |
| 6.0-26.75 | 8 | 10 | 75 |
| 4.0-39.00 | 13 | 10 | 107 |
| 6.0-32.00 | 8 | 10 | 75 |
| 5.0-28.00 | 7 | 10 | 69 |
| 6.0-30.50 | 9 | 10 | 80 |
| 6.0-37.00 | 12 | 10 | 100 |
| 4.8-10.65 | 5 | 6 | 54 |
| 6.0-25.00 | 7 | 10 | 65 |
| 6.0-32.00 | 9 | 10 | 76 |
| 6.0-40.00 | 16 | 13 | 105 |
