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HSS Twist Flute Step Drills
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Product Details
| Place of Origin | Jiangsu, China | Brand Name | TONGYU | |
| Model Number | TY11-1.3.4.7 | Type | Center Drill Bit | |
| Material | Other, High Speed Steel, HSS W4; HSS W9; HSS M2; HSS Co 5% | Use | Metal Drilling |
Product Description
Specifications
1. M2, M35 are available2. Available for specified requirements.
3. For all materials in sheet
4.. Wall thickness up to 4mm
Twist Flute HSS Step Drill Bits, Spiral Flute design
M2 HSS, Titanitrid Coating, M35 HSS-E
1. Available for specified requirements.
2. For all materials in sheet, pipes and workpieces with a wall thickness up to 4mm
| Material | HSS W4/W9/M2/M35 |
| Flute type | Twist Flute, Spiral Flute |
| Shank | Straight Shank |
| Surface treatment | Bright Finished |
| Point Angle | 118 degree point |
| Application | For drilling in sheet, pipes and workpieces
|
| Pakcing: | 1. Single piece packed in clam shell |
| 2. Step drill in sets are available. |
Advantages:
1. No Centering required, the drills do not run off center.
2. A variety of hole diameters can be drilled using only one tool, and the tool can display the dimensions.
3. The dimension of drilled hole is exact.
4. Holes are de-burred by the following level, and cylindrical bores are produced.
5. Even very thin-walled materials can be drilled.
| Item NO. | Specification | Steps | OAL | Shank Size | Material |
| 1.3.4.7-1 | 4-12 | 9 | 65mm | 6mm | HSS W4/W9/M2/M35 |
| 1.3.4.7-2 | 4-20 | 9 | 65mm | 8mm | HSS W4/W9/M2/M35 |
| 1.3.4.7-3 | 4-22 | 10 | 75mm | 8mm | HSS W4/W9/M2/M35 |
| 1.3.4.7-4 | 6-20 | 8 | 100mm | 8mm | HSS W4/W9/M2/M35 |
| 1.3.4.7-5 | 6-30 | 13 | 100mm | 10mm | HSS W4/W9/M2/M35 |
| 1.3.4.7-6 | 4-32 | 10 | 75mm | 10mm | HSS W4/W9/M2/M35 |
| 1.3.4.7-7 | 1/8-1/2 | 13 | 107mm | 1/4 in. | HSS W4/W9/M2/M35 |
| 1.3.4.7-8 | 3/16-1/2 | 6 | 75mm | 1/4 in. | HSS W4/W9/M2/M35 |
| 1.3.4.7-9 | 1/4"-3/4" | 9 | 80mm | 3/8 in. | HSS W4/W9/M2/M35 |
TONGYU's philosophy is based on three principles: safety, efficiency and precision.
Pls. contact us freely for more information, I will reply you ASAP!
Hope you will enjoy a comfortable cooperation with us!
Contact Us
- Danyang Tongyu Tools Co., Ltd.
- Contact nameDavid Yu Chat Now
- Phone0086-511-86325949
- AddressRm. 5, Bldg. 05, Binjiang New City, Houxiang, Danbei Town
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