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Drill 5.2 NWKc HSS Baildon - Artykuły Techniczne
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  • Drill 5.2 NWKc HSS Baildon - Artykuły Techniczne
  • Drill 5.2 NWKc HSS Baildon - Artykuły Techniczne - nr. 1
Baildon

Drill 5.2 NWKc HSS DIN 345 Baildon

€5.83 tax inc.

Net price: €4.74

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W magazynie: 10 pcs.
W magazynie: 10 pcs.

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Description

DIAMETER Ø5.2 mm
MORSE TAPER MT1
OVERALL LENGTH 133 mm
FLUTE LENGTH 52 mm

Technical specifications of the Ø5.2 mm drill bit

Twist drill with Morse taper shank

TECHNICAL DATA
Diameter Ø5.2 NWKc HSS
Standard DIN 345
Drill type NWKc — twist drill with taper shank
Material HSS (high-speed steel)
Overall length l1 133 mm
Flute length l2 52 mm
Morse taper MT1
Point angle 118°
Diameter tolerance h8
Cutting direction Right-hand

Ø5.2 mm HSS metal drill bit – Morse taper MT1

Product description and key benefits

The Ø5.2 mm twist drill with an MT1 Morse taper achieves higher hole accuracy than comparable straight-shank drills — direct mounting in the spindle shortens the torque transmission path and reduces radial runout. The tool is designed for stationary drilling machines: pillar machines, bench machines with an MT1 spindle, and box-column machines. The Ø5.2 Morse taper drill with a flute length of 52 mm is sufficient for holes in sheet metal and sections of typical shop thicknesses.

Key benefits of the Ø5.2 mm metal drill bit

  • Eliminates the drill chuck — the MT1 taper seated directly in the spindle shortens the torque transmission path and reduces radial tool runout
  • Heat resistance up to 600°C — the high-speed steel cutting edge retains its working hardness even at higher cutting speeds in soft and medium-hard steels
  • Interchangeability to DIN 345 — identical taper dimensions across manufacturers allow drill replacement without calibrating the spindle axis
  • Short design (l1 = 133 mm) — reduced tool overhang provides greater rigidity and a better hole surface finish than extended-length drills
  • Holes for locating pins and bushings — the h8 tolerance grade provides a repeatable preliminary size before finish reaming to an H7 fit
  • Low operating cost — can be resharpened repeatedly on a tool grinder without losing cutting geometry while maintaining the 118° angle

The Ø5.2 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 Ø5.200–Ø5.320 mm provides dimensional accuracy sufficient for most bolted connections.

Morse tapers – dimensions to DIN 228

Dimension table for all Morse tapers MT0–MT6

TaperDiameter 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 Ø5.2 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 Ø5.2 mm drill bit according to ISO 513

Recommended machining conditions for a diameter of Ø5.2 mm

ISO symbolWorkpiece materialVc [m/min]f [mm/rev]n [rpm]Vf [mm/min]
P Steel Structural steel up to 900 N/mm² 11÷20 0.06 673÷1224 40÷73
K Cast iron Gray cast iron GG20–GG30 13÷16 0.06 796÷979 48÷59
N Copper and Al alloys Cu, CuZn, Al, and alloys 25÷28 0.08÷0.10 1530÷1714 122÷171

Checking radial runout

Before drilling with the Ø5.2 mm drill, check radial runout in the spindle — the maximum permissible value is 0.02 mm. Excessive runout reduces hole quality and accelerates cutting edge wear. The taper and spindle socket must be clean and dry.

Material compatibility of the Ø5.2 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 Ø5.2 mm drill bit

The Ø5.2 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 = 52 mm minus the drill point length (approximately 2 mm). The effective usable depth is therefore approximately 50 mm.

Product accessories

Morse drift MK1-2

Reference: 0000012383 In stock > 10 items

€3.95

€4.86 brutto

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Drill 5.2 NWKc HSS DIN 345 Baildon

Drill 5.2 NWKc HSS DIN 345 Baildon

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