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                          Regular Series Type 5321T.
Bright finish. Flute type: 30 helix. Manufactured to BS 122: Part 4: 1980.
Inch Tolerances:
Diameter: up to 1". Tolerance: +0.0025, -0.0005.
Diameter: Over 1". Tolerance: +0.0050, -0.0000.
                        
| Cutter Style | Square End | 
| System of Measurement | Inch | 
| Material Grade | M35 | 
| Series | 5321T | 
| Coolant Delivery | External | 
| Cutter Diameter | 3/16in | 
| Number of Flutes | 3 | 
| Flute Type | Helical | 
| Length Type | Regular | 
| Material | Cobalt High Speed Steel | 
| Finish/Coating | Bright | 
| Cutter Diameter Tolerance | e8 | 
| Shank Diameter Tolerance | H6 | 
| End Mill Type | Slot Drill | 
| Shank Diameter | 1/4in | 
| Standards Met | BS 122 | 
| Flute Length | 5/8in | 
| Shank Type | Threaded | 
| Milling Cutter Type | Slot Drill | 
| Overall Length | 2-3/8in | 
| Plunge Type | Centre Cutting | 
| Product Type | Slot Drills | 
| Cutting Direction | Right Hand | 
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