Jiangsu Xingrui Tools CO.,LTD
| Supply Ability | 50000 Set/Sets per Month Step Drill Set |
| Delivery Time | 25days |
| Packaging Details | 3Pcs packed in one aluminum case, 20sets/carton. |
| Name | hss step drill bit |
| Material | hss-4241;4341;m2;m35 |
| Use | Metal Drilling |
| Flute | Straight Flute |
| Flute Number | Three Flutes |
| Shank | Three Flat Shank |
| Process | Fully Ground |
| Point Angle | 135 Degree Split Point |
| Surface Finish | Black and Amber |
| Application | Metal sheet Tube Drilling |
| Brand Name | STARRY |
| Model Number | 3/16-1/2", 3/16-7/8", 1/4-3/4" |
| Certification | ISO9000 |
| Place of Origin | JIANG SU CHINA |
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Product Specification
| Supply Ability | 50000 Set/Sets per Month Step Drill Set | Delivery Time | 25days |
| Packaging Details | 3Pcs packed in one aluminum case, 20sets/carton. | Name | hss step drill bit |
| Material | hss-4241;4341;m2;m35 | Use | Metal Drilling |
| Flute | Straight Flute | Flute Number | Three Flutes |
| Shank | Three Flat Shank | Process | Fully Ground |
| Point Angle | 135 Degree Split Point | Surface Finish | Black and Amber |
| Application | Metal sheet Tube Drilling | Brand Name | STARRY |
| Model Number | 3/16-1/2", 3/16-7/8", 1/4-3/4" | Certification | ISO9000 |
| Place of Origin | JIANG SU CHINA | ||
| High Light | step up drill bit ，titanium step drill bit | ||
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.
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2008
Total Annual:
10000000-20000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
JIANG SU XING RUI TOOLS CO., LTD. is one of the professional manufacturers of different kinds cutting tools in china, specialized in all kinds of HSS twist drill bits, SDS drill bits ,wood working drill bits , HSS machine Taps,hand taps,spiral flute taps,End mill,Hole... JIANG SU XING RUI TOOLS CO., LTD. is one of the professional manufacturers of different kinds cutting tools in china, specialized in all kinds of HSS twist drill bits, SDS drill bits ,wood working drill bits , HSS machine Taps,hand taps,spiral flute taps,End mill,Hole...
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