Solid carbide drills, type N, 3xD, code C30012, diameter 7 mm

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Solid carbide drills, type N, 3xD, code C30012, diameter 7 mm

C30012.070 Solid carbide (SC)

Cutting conditions Product attributes

D	d	l₁	l₂	Item code	On stock
7	7	74	34	C30012.070	Yes

Cutting conditions

Material	Strength	V_c	fz(mm/r) Ø3	Ø5	Ø8	Ø10	Ø12	Ø15	Ø17	Ø20
P.1 \| Free-cutting steels, general construction steels	≤ 600 N/mm²	75	0,085	0,16	0,22	0,28	0,35	0,35	0,37	0,4
P.2 \| General construction steels, steel castings	≤ 850 N/mm²	70	0,085	0,16	0,22	0,28	0,35	0,35	0,37	0,4
M.1 \| Corrosion- and acid-proof steels	≤ 750 N/mm²	35	0,065	0,1	0,13	0,16	0,2	0,2	0,25	0,32
M.3 \| Corrosion- and acid-proof steels	> 850 N/mm²	25	0,065	0,1	0,13	0,16	0,2	0,2	0,25	0,32
K.1 \| Cast iron (≤ 240 HB)	≤ 820 N/mm²	80	0,085	0,16	0,22	0,28	0,35	0,35	0,37	0,4

Calculations of cutting conditions

Product attributes

Type N

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Universal usage. Suitable for materials up to strength 900 MPa.

Drilling depth 3xD

Oil coolant.

Point angle 118°

Right helix

Solid carbide

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Carbide materials are characterised by high compressive strength, high hardness and therefore high wear resistance, but also limited flexural strength and toughness.