Jiangsu Xingrui Tools CO.,LTD
Professional Tools Supplier In China.
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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.
| Procuct Name | 3Pcs 3 Flats Shank Straight Flute Golden & Black Color HSS Step Drill Bit Set for Metal Sheet Multiple Hole Drilling |
| Sizes | 3/16-1/2", 3/16-7/8", 1/4-3/4" (Metric Size is Available) |
| Material | HSS (Cobalt M35 is Available) |
| Flute Type | Straight Flute (Spiral 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 | Black & Amber (TiN, Bright, Co-coated, Black Oxide, Black & Bright, TiAIN are Available) |
| Package | 3Pcs in Aluminum Case (Nylon Bag is Available) |
| 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. Only for rotary use. |
| SIZE | L | Steps | D3 |
| D1-D2 | MM |
| MM |
| 4.0-12.00 | 65,0 | 5 | 6,0 |
| 4.0-12.00 | 65,0 | 9 | 6,0 |
| 4.0-20.00 | 75,0 | 9 | 8,0 |
| 4.0-30.00 | 100,0 | 14 | 10,0 |
| 6.0-38.00 | 100,0 | 12 | 10,0 |
| 6.0-26.75 | 75,0 | 8 | 10,0 |
| 4.0-39.00 | 107,0 | 13 | 10,0 |
| 6.0-32.00 | 75,0 | 8 | 10,0 |
| 5.0-28.00 | 69,0 | 7 | 10,0 |
| 6.0-30.50 | 80,0 | 9 | 10,0 |
| 6.0-37.00 | 100,0 | 12 | 10,0 |
| 6.0-32.00 | 76,0 | 9 | 10,0 |
| 6.0-40.00 | 105,0 | 16 | 13,0 |
| 6.5-32.5 | 91,0 | 12 | 10,0 |
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| SIZE | Drilling range | ||
| D1-D2 | mm | ||
| 4.0-12.00 | 4.0/ 6.0/ 8.0/ 10.0/ 12.0 | ||
| 4.0-12.00 | 4.0/ 5.0/ 6.0/ 7.0/ 8.0/ 9.0/ 10.0/ 11.0/ 12.0 | ||
| 4.0-20.00 | 4.0/ 6.0/ 8.0/ 10.0/ 12.0/ 14.0/ 16.0/ 18.0/ 20.0 | ||
| 4.0-30.00 | 4.0/ 6.0/ 8.0/ 10.0/ 12.0/ 14.0/ 16.0/ 18.0/ 20.0/ 22.0/ 24.0/ 26.0/ 28.0/ 30.0 | ||
| 6.0-38.00 | 6.0/ 9.0/ 13.0/ 16.0/ 19.0/ 21.0/ 23.0/ 26.0/ 29.0/ 32.0/ 35.0/ 38.0 | ||
| 6.0-26.75 | 6.0/ 9.0/ 11.4(PG7)/ 14.0(PG9)/ 17.25(PG11)/ 19.0(PG13.5)/ 21.25(PG16)/ 26.75(PG21) | ||
| 4.0-39.00 | 4.0/ 6.0/ 12.0/ 15.0/ 18.0/ 21.0/ 24.0/ 27.0/ 30.0/ 33.0/ 36.0/ 39.0 | ||
| 6.0-32.00 | 6.0/ 9.0/ 11.2(R1/ 8)/ 14.5(R1/ 4)/ 18.2(R3/ 8)/ 22.3(R1/ 2)/ 27.9(R3/4)/ 32.0 | ||
| 5.0-28.00 | 5.0/ 8.8(G1/8)/ 11.8(G1/4)/ 15.3(G3/8)/ 19.0(G1/2)/ 24.5(G3/4)/ 28.0 | ||
| 6.0-30.50 | 6.0/ 9.0/ 12.5(PG7)/ 15.2(PG9)/ 18.6(PG11)/ 20.4(PG13.5)/ 22.5(PG16)/ 28.3(PG21)/ 30.5 | ||
| 6.0-37.00 | 6.0/ 9.0/ 12.5(PG7)/ 15.2(PG9)/ 18.6(PG11)/ 20.4(PG13.5)/ 22.5(PG16)/ 26.0/ 28.3(PG21)/ 30.5/ 34.0/ 37.0(PG29) | ||
| 6.0-32.00 | 6.0/ 9.0/ 12.0/ 16.0/ 20.0/ 22.5/ 25.0/ 28.5/ 32.0 | ||
| 6.0-40.00 | 6.0/ 11.0/ 17.0/ 23.0/ 29.0/ 30.0/ 31.0/ 32.0/ 33.0/ 34.0/ 35.0/ 36.0/ 37.0/ 38.0/ 39.0/ 40.0 | ||
| 6.5-32.5 | 6.5/ 8.5/ 10.5/ 12.7/ 15.2(PG9)/ 16.2/ 18.6(PG11)/ 20.4(PG13.5)/ 22.5(PG16)/ 25.5/ 28.3(PG21)/ 32.5 | ||
Packaging Details:
10pc/bag,10bag/inner box,10box/carton
factory default packing cutomized packing accept,need adding extra packing cost.