DIN / ANSI Hex Shank HSS Saw Drill Bit For Soft Metal Wood Plastic Drilling
DIN / ANSI Hex Shank HSS Saw Drill Bit For Soft Metal Wood Plastic Drilling
quick datail :
1 Name: DIN / ANSI HSS Twist Drill Bit
2 Material: High Speed Steel, HSS
3 Process: Fully Ground (Rolled & Polished, Rolled, Milled are Available)
4 Size: Size: 3-13mm, 1/8"-1/2"
5 Point Type: 118 Degree
6 Shank Type: Hex Shank (Straight Shank, Tri-Flats Shank, Double R Hex Shank, Reduced Shank)
7 Helix Angle: Regular Spiral Type N
8 Surface Finish: Titanium Coating, other finish available too
size :
| Diameter (mm) | Flute Length (mm) | Overall Length (mm) | Diameter (mm) | Flute Length (mm) | Overall Length (mm) |
| 4.0 | 43 | 75 | 8.0 | 75 | 117 |
| 4.2 | 43 | 75 | 8.5 | 75 | 117 |
| 4.5 | 47 | 80 | 9.0 | 81 | 125 |
| 9.5 | 81 | 125 | 15.0 | 114 | 169 |
| 10.0 | 87 | 133 | 15.5 | 120 | 178 |
| 10.5 | 87 | 133 | 16.0 | 120 | 178 |
| 12.0 | 101 | 151 | 17.5 | 130 | 191 |
| 12.5 | 101 | 151 | 18.0 | 130 | 191 |
| 13.0 | 101 | 151 | 18.5 | 135 | 193 |
How to Sharpen the HSS Drill Bit?
You can Sharpen the HSS Drill Bit when the chipping length is below 0.02,” or
drilled holes are out of the tolerance. When the drilling produces more noise is
another sign of sharpening. You can use a file or grinder made with carbide or
diamond. The cutting angle should maintain according to the material requirement.
| Workpiece Material | Point Angle | Helix Angle | Lip Relief Angle |
|---|---|---|---|
| Aluminum | 90 to 135 | 32 to 48 | 12 to 26 |
| Brass | 90 to 118 | 0 to 20 | 12 to 26 |
| Cast iron | 90 to 118 | 24 to 32 | 7 to 20 |
| Mild Steel | 118 to 135 | 24 to 32 | 7 to 24 |
| Stainless Steel | 118 to 135 | 24 to 32 | 7 to 24 |
| Plastics | 60 to 90 | 0 to 20 | 12 to 26 |
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