40mm T/S ARMOUR PIERCING DRILL
| Applications | Heavy Duty Drilling |
|---|---|
| Brand | Somta |
| Cutting Diameter Tolerance | h8 |
| Cutting Direction | Right Hand |
| Drill Diameter | 40 mm |
| Drill Point Type | Thinned Point |
| Drill Type | Type H |
| Finish/Coating | Blue |
| Flute Length | 152 mm |
| Flute Type | Spiral |
| Helix Angle | 15 ° |
| Material | Cobalt 5% High Speed Steel |
| Material Application | Hard Materials; Heat Resisting Alloy; Stainless Steel; Manganese Steel; Titanium |
|---|---|
| Maximum Cutting Depth | 152 mm |
| Number of Flutes | 2 |
| Overall Length | 298 mm |
| Point Angle | 130 ° |
| Product Type | Armour Piercing Drill |
| Series/List | 261 |
| Shank Length | 146 mm |
| Shank Type | Morse Taper Shank |
| Standards Met | Works Standard Factory Specifications |
| System Measurement | Metric |
Used for heavy duty drilling in work Hardening steel with a manganese content of 12-14 percent .
4 Morse taper
Overall length 298mm
Flute length 152mm
Operating Conditions
- cutting speed between 3-4 meters per minute
- a feed of only 60 percent of standard drill
- Very rigid machine set-up
- drilled without coolant
Precautions
- drill must not touch work without feed being engaged - no marking of work surface ie centre punch