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Metal drill bit 59 NWKc HSS DIN 345 Werko
Net price: €152.63
Description
Technical specifications of the Ø59 mm drill bit
Twist drill with Morse taper shank
| TECHNICAL DATA | |
|---|---|
| Diameter | Ø59 NWKc HSS |
| Standard | DIN 345 |
| Drill type | NWKc — twist drill with taper shank |
| Material | HSS (high-speed steel) |
| Overall length l1 | 422 mm |
| Flute length l2 | 235 mm |
| Morse taper | MT5 |
| Point angle | 118° |
| Diameter tolerance | h8 |
| Cutting direction | Right-hand |
Ø59 mm HSS metal drill bit – Morse taper MT5
Product description and key benefits
The Ø59 mm twist drill with an MT5 Morse taper is a solution for large holes in solid material — where hole saws cannot be used due to the depth or geometry of the component. The flute length of 235 mm allows drilling holes in plates up to 215 mm thick. The Ø59 Morse taper drill requires emulsion cooling at a minimum flow rate of 6 l/min.
Key benefits of the Ø59 mm metal drill bit
- Direct mounting in an MT5 spindle — eliminates the drill chuck as a source of runout and slippage
- Flute length 235 mm — drilling through holes in workpieces up to 220 mm thick in a single pass
- DIN 345 — identical taper dimensions regardless of manufacturer — full interchangeability
- Type N right-hand helical flutes — a compromise between web rigidity and flute capacity
- h8 diameter fit — preliminary holes for reaming to H7 without additional boring
- Extended tool life with emulsion cooling — coolant increases cutting edge life by up to a factor of 2.5 compared with dry drilling
The Ø59 mm Morse taper drill is used in heavy machinery manufacturing to produce holes in castings, machine bodies, and thick plates. In shipyards, it is used to machine hull components and hatch cover mechanisms. H12 tolerance (Ø59.000–Ø59.300 mm); more precise holes require boring.
Morse tapers – dimensions to DIN 228
Dimension table for all Morse tapers MT0–MT6
| Taper | Diameter D [mm] | Length [mm] |
|---|---|---|
| MT0 | 9.045 | 49.8 |
| MT1 | 12.065 | 53.5 |
| MT2 | 17.780 | 64.0 |
| MT3 | 23.825 | 80.5 |
| MT4 | 31.267 | 117.5 |
| MT5 | 44.399 | 149.5 |
| MT6 | 63.348 | 210.0 |
REDUCTION SLEEVES COMPATIBLE WITH THE Ø59 MM DRILL BIT:
| ✓ | MT5 → MT6 — for a spindle with an MT6 socket |
| ✓ | MT5 → MT4 — not recommended (socket capacity below the operating load) |
| ✓ | MT5 drill drift — for removing the drill bit from the spindle |
Cutting data for the Ø59 mm drill bit according to ISO 513
Recommended machining conditions for a diameter of Ø59 mm
| ISO symbol | Workpiece material | Vc [m/min] | f [mm/rev] | n [rpm] | Vf [mm/min] |
|---|---|---|---|---|---|
| P Steel | Structural steel up to 900 N/mm² | 11÷20 | 0.32 | 59÷108 | 19÷35 |
| K Cast iron | Gray cast iron GG20–GG30 | 13÷16 | 0.32 | 70÷86 | 22÷28 |
| N Copper and Al alloys | Cu, CuZn, Al, and alloys | 25÷28 | 0.40÷0.50 | 135÷151 | 54÷76 |
Vibration at large diameters
At a diameter of 59 mm, the risk of vibration is increased — the long chisel edge generates an asymmetrical load. A Ø20–25 mm pilot hole eliminates chisel edge engagement. Additionally: check spindle runout (max. 0.03 mm) and secure the workpiece with rigid fixtures.
Material compatibility of the Ø59 mm drill bit
Range of workpiece materials and application limitations
Frequently asked questions about the Ø59 mm drill bit
Yes — gray cast iron (GG20–GG30) and ductile cast iron (GGG40) are well suited to HSS drills. Short, brittle chips are easier to evacuate from the flutes than steel chips. Dry drilling with a compressed air blast is possible.
H12 tolerance as standard. Reaming or boring is required for H7 or tighter fits — a twist drill cannot achieve these tolerances without finishing.
At least 4 kW of motor power and an MT5 or larger spindle. When drilling S355 steel, torque at the drill reaches 147 Nm — bench and magnetic drilling machines do not provide sufficient rigidity. The optimal machine is a box-column or radial drilling machine with power feed.
Product accessories
Reduction sleeve MK6 MK5 1751 PTPa DIN 228
Reference: 1187 In stock < 10 items
€55.03 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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