Solid carbide drill bit

SKU: 921
Category: Drills
Manufacturers: HC-Maschinentechnik

Coating: Blank

ZrN
Diameter
typ

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This item has variations. Please select the requested variation.

Description

Solid carbide (VHM) twist drill

Solid carbide twist drills are characterized by the following advantages:

high hardness
precisely ground cross cutting edge
high rigidity
high wear resistance

Technical data (Tech specs)
Point angle (flutes)	120°
Composition	90% Wc / 10% Co
Grain size	0.6 µm

Choice of coating:

Coatings protect the cutting edges from abrasive wear and ensure a reduction in cutting forces. A significant increase in efficiency can be achieved, particularly in series production, thanks to higher feed rates and fewer tool changes.

TiAlN coating:
The TiAlN coating (titanium aluminum nitride) is a multi-layer wear protection coating that is applied to the cutting edges using the PVD process. The resulting oxidation resistance and high hardness lead to a significant increase in tool life.
Application: Steel, stainless steel, gray and malleable cast iron.

ZrN coating:
The ZrN multilayer coating is characterized by a smooth surface and very good ductility.
Application: Aluminum, copper, brass, plastics

Bright - uncoated
Universal use for aluminum and plastics

Solid carbide drill blank, ZrN

Dimensions(mm)
Spiral diameter	Spiral length	Total length
1,0	18	38
1,5	18	38
1,6	18	38
2.0	18	38
2,5	18	38
2,8	18	38
3,0	18	38
3,3	18	38
3,5	18	38
3,7	18	38
4.0	18	38
4,2	22	43
4,5	22	43
4,6	22	43
5,0	25	50
5,5	25	50
6.0	22	50
6,5	35	60
6,8	35	60
7,0	35	60
7,4	35	60
7,5	35	60
8,0	30	60
8,5	35	60
9,0	35	65
9,3	38	65
9,5	38	65
10	38	65
10,2	38	65
10,5	38	65-70
11	38	75
11,5	38	70
12	38	75

Cutting data for uncoated and coated solid carbide drills
Material		Cutting speed (m/min)			Feed rate (mm)
Material		Blank	ZrN	TiAlN	Ø 1,0 - 2,0	Ø 2,1 - 3,0	Ø 3,1 - 5,0	Ø 5,1 - 6,0	Ø 6,1 - 8,0	Ø 8,1 - 10,0	Ø 10,1 - 12,0
	unalloyed steel	60	80	90	0,05	0,08	0,10	0,15	0,18	0,21	0,25
	Tempered steel (hardened and tempered)	50	70	80	0,018	0,04	0,067	0,083	0,10	0,12	0,13
	Stainless steel	30	35	40	0,02	0,05	0,08	0,09	0,11	0,14	0,14
	Gray cast iron	70	85	100	0,02	0,05	0,08	0,09	0,11	0,14	0,15
	Wrought aluminum alloy	180	230	250	0,06	0,08	0,10	0,15	0,18	0,21	0,25
	Aluminum cast alloy	120	170	180	0,06	0,08	0,10	0,15	0,18	0,21	0,25