Step Down Drill Bit
Hex Shank M2 Unibit Step Drill Bit Metric Size Titanium Coated for Metal Stainless Steel Drilling
- Made of M2 material with titanium coating, the bits have strong durability.
- Two-fluted design provides faster, smoother cutting.
- The split point tip is at 118 degrees to increase the wear resistance and reduce step drill bit slippage.
- Hex shank fits into power tools chuck securely and eliminates slip.
- Can cut through iron sheets, aluminum sheets, copper & plastic & wood board, and many other types of sheet metal.
- Product Details
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- Material
| Product Description | ||||
| More Choice For You: Home > Step Drill Bit | ||||
| Product Name | Hex Shank M2 Unibit Step Drill Bit Metric Size Titanium Coated for Metal Stainless Steel Drilling | |||
| Size | 4-32mm | |||
| Material | M2 (We Also Have Hss4341, HSS 4241, M35,M42) | |||
| Flute Type | Spiral Flute (We Also Have Straight Flute) | |||
| Flute Number | Double Flute (We Also Have Single Flute, Three Flute) | |||
| Shank | Hex Shank (We Also Have Three Flats Shank, Round Shank, Double R Shank) | |||
| Surface Finish | Titanium Coated (We Also Have Amber Color, Black Oxide, Black and Bright, Bright, and so on) | |||
| Package | 1Pcs in Double Blister Card | |||

| Spiral Flute Step Drills (Metric) | |||||
| Size (mm) | Number of Steps | L1 (mm) | L2 (mm) | D1 (mm) | D2 (mm) |
| 4-12 | 5 | 62 | 22 | 12 | 6 |
| 4-12 | 9 | 68 | 22 | 12 | 6 |
| 4-20 | 9 | 71 | 22 | 20 | 8 |
| 4-22 | 10 | 73 | 22 | 22 | 8 |
| 4-30 | 13 | 95 | 22 | 30 | 10 |
| 4-32 | 14 | 102 | 22 | 32 | 10 |
| 4-39 | 13 | 97 | 25 | 39 | 10 |
| 5-35 | 13 | 73 | 25 | 35 | 13 |
| 4-40 | 16 | 103 | 25 | 40 | 12 |
| 10-45 | 9 | 98 | 25 | 45 | 13 |
| Spiral Flute Step Drills (Inch) | |||||
| Size (inch) | Number of Steps | L1 (inch) | L2 (inch) | D1 (inch) | D2 (inch) |
| 3/16-1/2 | 6 | 2 7/32 | 7/8 | 3/16-1/2 | 1/4 |
| 1/8-1/2 | 13 | 2 27/32 | 7/8 | 1/8-1/2 | 1/4 |
| 1/4-3/4 | 9 | 2 51/64 | 29/32 | 1/4-3/4 | 3/8 |
| 3/16-7/8 | 12 | 3 | 7/8 | 3/16-7/8 | 3/8 |
| 1/4-1 3/8 | 10 | 2 61/64 | 7/8 | 1/4-1 3/8 | 3/8 |
| 7/16-1 1/8 | 12 | 2 51/64 | 7/8 | 7/16-1 1/8 | 3/8 |
| 9/16-1 | 8 | 3 3/64 | 7/8 | 9/16-1 | 3/8 |
| 13/16-1 3/8 | 10 | 3 | 7/8 | 13/16-1 3/8 | 3/8 |
| * Custom-tailor would be available against customers’ requirements | |||||



