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| Customization: | Available |
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| Customized: | Non-Customized |
| Length: | Jobber-length |
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| Procuct Name | Multi Stage Spiral Flute Replaceable HSS Step Drill Bit for Sheet Metal Drilling |
| Size | 9-40mm (9mm, 12mm, 15mm, 18mm, 21mm, 24mm, 27mm, 30mm, 33mm, 36mm, 40mm-for Deburring) |
| Material | HSS (Cobalt M35 is Available) |
| Flute Type | Spiral Flute (Straight Flute is Available) |
| Flute Number | Two Flutes (Single Flute, Three Flutes are Available) |
| Shank | Three Flats Shank (Quick Change Hex Shank, Round Shank, Double R Shank are Available) |
| Surface Finish | Bright (TiN, Black & Amber, Co-coated, Black Oxide, Black & Bright, TiAIN are Available) |
| Package | One Piece in Double Blister or Plastic Tube |
| Features |
1. Step drill bits are perfect for drilling and enlarging multiple-holes in thin sections of sheet metals, pipes, plexiglass, plastics, wood up to a thickness of 5mm. 2. 135° Split Point Tip: increases cutting speed with self-centering and the drills do not run off center. 3. A variety of hole diameters can be drilled using only one tool. 4. The dimension of drilled hole is exact. 5. Two Flute Design: provides longer life and better chip removal. 6. The Spiral Groove: creates better, less noise, less force has to be used. 7. Only for rotary use. |
| Size | Step | Incremental | Length | Shank |
| MM | MM | MM | MM | MM |
| 3/16"--1/2" | 6 | 1/16" | 3-1/8" | 1/4" |
| 1/8-1/2",3/16-1/2",3-12mm,4-12mm | 13 | 1/32" | 3-1/8" | 1/4" |
| 1/4"--3/4" | 9 | 1/16" | 2-3/4" | 3/8" |
| 3/16"--7/8" | 12 | 1/16" | 2-3/4" | 3/8" |
| 7/16"--1-1/8" | 12 | 1/16" | - | 3/8" |
| 1/4"--1-1/2" | 11 | 1/16" | - | 1/2" |
| 1/2"--1" | 9 | 1/16" | - | 3/8" |
| 9/16"--1" | 8 | 1/16" | - | 3/8" |
| 3/4"--1-3/8" | 11 | 1/16" | - | 1/2" |
| 13/16"--1-3/8" | 10 | 1/16" | - | 1/2" |
| 4--12mm | 5 | 2mm | 66mm | 6mm |
| 4--12mm | 9 | 1mm | 66mm | 6mm |
| 4--20mm | 9 | 2mm | 75mm | 8mm |
| 4--22mm,3/16-7/8" | 10 | 2mm | 79mm | 8mm |
| 4-30MM 6-30 5-35 | 14 | 2mm | 100mm | 10mm |
| 1/4-1/3/8,5-30# | ||||
| 4--39mm,6--39mm | 14 | - | - | 10mm |
| 5--35mm | 13 | - | - | 13mm |
| 6--18mm | 7 | 2mm | - | 10mm |
| 6#-20MM,4#-20MM,1/4-3/4 | 8 | 2mm | - | 10mm |
| 6--24mm | 10 | 2mm | - | 10mm |
| 6--32mm | 8 | - | - | 10mm |
| 14--24mm | 6 | 2mm | - | 13mm |
| 14--25mm | 7 | - | - | 13mm |
| 20--34mm | 8 | 2mm | - | 13mm |
| 10--20mm | 11 | 1mm | 85mm | 10mm |
| 20--30mm | 11 | 1mm | 88mm | 13mm |
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