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Drill 6 NWKc HSS DIN 345
00491
Diameter (mm): 6301 sizes of this drill
33,13,23,33,43,53,63,73,83,944,14,24,34,44,54,64,74,84,955,15,25,35,45,55,65,75,85,966,16,26,36,46,56,66,76,86,977,17,157,27,257,37,47,57,67,77,757,87,988,18,28,258,38,48,58,68,78,88,999,19,29,259,39,49,59,69,79,759,89,91010,110,210,310,410,510,610,710,7510,810,91111,111,211,2511,311,411,511,611,711,811,91212,112,212,312,412,512,612,712,812,91313,113,213,2513,313,413,513,613,713,7513,813,91414,2514,414,514,751515,2515,515,751616,2516,516,751717,2517,517,751818,2518,518,751919,2519,519,752020,2520,520,752121,2521,521,752222,2522,522,752323,2523,523,752424,2524,524,752525,2525,525,752626,2526,526,752727,2527,527,752828,2528,528,752929,2529,529,753030,2530,530,753131,2531,531,753232,2532,532,753333,2533,533,753434,2534,534,753535,2535,535,753636,2536,536,753737,2537,537,7537,83838,538,753939,2539,539,754040,2540,54141,54242,54343,54444,54545,54646,546,75474848,54949,55050,55151,55252,553545556575858,55960616263646566676869707172737475767778798081828384858687888990919293949596979899100
€6.15 tax inc.
Net price: €5.00
Description
DIAMETER Ø6 mm
MORSE TAPER MT1
OVERALL LENGTH 138 mm
FLUTE LENGTH 57 mm
Technical specifications of the Ø6 mm drill bit
Twist drill with Morse taper shank
| TECHNICAL DATA | |
|---|---|
| Diameter | Ø6 NWKc HSS |
| Standard | DIN 345 |
| Drill type | NWKc — twist drill with taper shank |
| Material | HSS (high-speed steel) |
| Overall length l1 | 138 mm |
| Flute length l2 | 57 mm |
| Morse taper | MT1 |
| Point angle | 118° |
| Diameter tolerance | h8 |
| Cutting direction | Right-hand |
Ø6 mm HSS metal drill bit – Morse taper MT1
Product description and key benefits
The Ø6 mm twist drill with an MT1 Morse taper is an alternative to straight-shank drills wherever a drill chuck does not provide sufficient clamping rigidity. Direct mounting in the spindle of a pillar drilling machine eliminates the intermediate link — the chuck — which can become a source of runout and slippage during intensive use. The Ø6 Morse taper drill is particularly suitable for metalworking shops and toolrooms, where hole position accuracy matters when fitting pins and bushings.
Key benefits of the Ø6 mm metal drill bit
- Self-holding Morse taper — MT1 transmits torque without slippage — essential for prolonged batch drilling
- HSS steel with a hardness of 63–65 HRC — the cutting edge retains its sharpness throughout the tool's service interval between sharpenings
- Flute length 57 mm — the maximum drilling depth allows typical shop sections and sheet metal to be machined in a single pass
- 118° point angle — self-centering in soft steels — eliminates the need for spot drilling on flat surfaces
- Diameter tolerance h8 — repeatable hole size in batch and single-part production
- Cutting edge reconditioning — repeated resharpening extends tool life — at l2 = 57 mm, the resharpening allowance is approximately 7 mm
The Ø6 mm Morse taper drill is selected for repair and assembly work on pillar drilling machines. The tool allows fast drilling of through and blind holes in steels with tensile strengths up to 900 N/mm². H12 tolerance at Ø6.000–Ø6.120 mm provides dimensional accuracy sufficient for most bolted connections.
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 Ø6 MM DRILL BIT:
| ✓ | MT1 → MT2 — for a spindle with an MT2 socket |
| ✓ | MT1 → MT3 — for a spindle with an MT3 socket |
| ✓ | MT1 drill drift — for removing the drill bit from the spindle |
Cutting data for the Ø6 mm drill bit according to ISO 513
Recommended machining conditions for a diameter of Ø6 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 | 0.06 | 584÷1061 | 35÷64 |
| K Cast iron | Gray cast iron GG20–GG30 | 13÷16 | 0.06 | 690÷849 | 41÷51 |
| N Copper and Al alloys | Cu, CuZn, Al, and alloys | 25÷28 | 0.08÷0.10 | 1326÷1485 | 106÷148 |
Drilling blind holes
When drilling blind holes with the Ø6 mm drill, allow for the drill point cone — the usable depth is approximately 2 mm less than the set depth. For holes deeper than 18 mm (3×D), retract the drill every 9 mm to clear chips from the flutes.
Material compatibility of the Ø6 mm drill bit
Range of workpiece materials and application limitations
✓ Structural steel (S235, S355) up to 900 N/mm²
✓ Gray and ductile cast iron (GG20, GGG40)
✓ Low-carbon and medium-alloy steel
▲ Stainless steel (Vc reduced by 40%, ample coolant)
▲ Aluminum and Al alloys (emulsion coolant required)
✗ Hardened steels above 45 HRC
Frequently asked questions about the Ø6 mm drill bit
The Ø6 mm NWKc drill bit with an MT1 taper mounts directly in the drill press spindle — the self-holding taper eliminates slipping under high cutting torque. A straight shank drill bit requires a drill chuck, which may not transmit the full torque during heavy use.
Yes — using an MT1→MT2 reduction sleeve. The sleeve ensures proper seating of the taper in the larger spindle socket. Use a correctly sized drill drift for removal.
The maximum drilling depth is the flute length l2 = 57 mm minus the drill point length (approximately 2 mm). The effective usable depth is therefore approximately 55 mm.
Product accessories
Reduction sleeve MK2 MK1 1751 PTPa DIN 228
Reference: 2586 In stock > 10 items
€9.21
€11.33 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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