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Drill 30 NWKc HSS DIN 345
Net price: €38.16
Description
Technical specifications of the Ø30 mm drill bit
Twist drill with Morse taper shank
| TECHNICAL DATA | |
|---|---|
| Diameter | Ø30 NWKc HSS |
| Standard | DIN 345 |
| Drill type | NWKc — twist drill with taper shank |
| Material | HSS (high-speed steel) |
| Overall length l1 | 296 mm |
| Flute length l2 | 175 mm |
| Morse taper | MT3 |
| Point angle | 118° |
| Diameter tolerance | h8 |
| Cutting direction | Right-hand |
Ø30 mm HSS metal drill bit – Morse taper MT3
Product description and key benefits
The Ø30 mm twist drill with an MT3 Morse taper is designed for drilling holes for bolted connections in steel structures — pipeline flanges, truss joints, and beam end plates. The MT3 taper with a diameter of 23.825 mm provides sufficient contact area to transmit the torque generated when drilling holes larger than 23 mm. The Ø30 Morse taper drill seats in the spindles of shop-grade pillar and box-column drilling machines rated at 1.5 kW or more.
Key benefits of the Ø30 mm metal drill bit
- Direct mounting in an MT3 spindle — eliminates the drill chuck as a source of runout and slippage
- Flute length 175 mm — drilling through holes in workpieces up to 160 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 Ø30 mm Morse taper drill bit is used to manufacture infrastructure components — columns, supports, brackets, and load-bearing frames. In steel construction, hole diameters of 23–31 mm correspond to M22–M30 bolts. An H12 tolerance of Ø30.000–Ø30.210 mm is sufficient for through holes.
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 Ø30 MM DRILL BIT:
| ✓ | MT3 → MT4 — for a spindle with an MT4 socket |
| ✓ | MT3 → MT5 — for a spindle with an MT5 socket |
| ✓ | MT3 drill drift — for removing the drill bit from the spindle |
Cutting data for the Ø30 mm drill bit according to ISO 513
Recommended machining conditions for a diameter of Ø30 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 | 0.20 | 117÷212 | 23÷42 |
| K Cast iron | Gray cast iron GG20–GG30 | 13÷16 | 0.20 | 138÷170 | 28÷34 |
| N Copper and Al alloys | Cu, CuZn, Al, and alloys | 25÷28 | 0.25÷0.32 | 265÷297 | 66÷95 |
Machine tool requirements
The Ø30 mm drill requires a drilling machine with at least 1.5 kW of power and a rigid pillar or box-column construction. Bench drilling machines do not provide sufficient rigidity — resulting in runout, vibration, and accelerated cutting edge wear.
Material compatibility of the Ø30 mm drill bit
Range of workpiece materials and application limitations
Frequently asked questions about the Ø30 mm drill bit
An HSSE drill bit contains 5% cobalt, which increases heat resistance from 600°C to 650°C. The practical difference: HSSE performs much better in stainless and difficult-to-machine steels. When machining only carbon steels, the difference in tool life is minimal.
Use peck drilling: retract the drill every 1–1.5×D, clear chips from the flutes, and cool with a 6–8% emulsion. Reduce the feed by 30–50% from the nominal value.
Spot drilling is not necessary on flat surfaces in structural steels. Spotting with a 90° NC spotting drill is recommended when drilling on inclined surfaces, castings with machining allowance, and flame-cut surfaces.
Product accessories
Reduction sleeve MK4 MK3 1751 PTPa DIN 228
Reference: 1180 In stock > 10 items
€22.66 brutto
Reduction sleeve MK6 MK3 1751 PTPa DIN 228
Reference: 11965 In stock < 10 items
€45.32 brutto
Reduction sleeve MK5 MK3 1751 PTPa DIN 228
Reference: 5702 In stock > 10 items
€32.37 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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