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Description
Technical data of long drill fi 12 mm
| Technical data | |
|---|---|
| Drill working diameter d | fi 12 mm |
| Overall length l1 | 205 mm |
| Length of working part l2 | 134 mm |
Cutting parameters of long drill bit fi 12 mm HSS NWKb
| ISO symbol | Material | Cutting speed Vc [m/min] | Feed per revolution f [mm] | Revolutions n [obr/min] | Total feed rate [mm/min] |
|---|---|---|---|---|---|
| P | Steel | 12-21 | 0,12 | 318 | 38 |
| K | Cast iron | 10-15 | 0,12 | 265 | 32 |
| Copper and alloys | 12-25 | 0,16 | 318 | 51 |
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Cutting parameters calculator
Long drill bit for metal fi 12 mm
High quality long drill bit for metal fi 12 with smooth cylindrical shank with a diameter of 12 mm. It is suitable for professional processing of very hard materials classified as P1.2 - P1.3. These are carbon steels (unalloyed), metals, sheet metals, copper and aluminum alloys giving short chips and also thermoplastics. Long drills for metal fi 12.0 of this type are made according to the dimensional standard NWKb, DIN 340. They have 2 central blades, a tip angle of 118 degrees, strong cutting edges insensitive to the impact of lateral forces, as well as spiral grooves responsible for the rapid removal of chips up the drilled hole. These specific geometric features of the drills enhance cutting performance. The cylindrical drills in our offer are produced by grinding method entirely from special HSS high-speed steel. Its properties affect the increased efficiency and precision of machining. The holes made are axial along the entire length and with low roughness. The drills are suitable for professional drilling work in large locksmith shops.
Product accessories
Drill 12 extra long 295/205 HSS DIN 1869
Reference: 0000003979 In stock > 10 items
€14.47
€17.80 brutto
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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