Aaaaa-Cemented Carbide Gun Drill Blanks Double Hole Rydmet

• Application: Industrial
• Standard: JIS, GB, DIN, AISI
• Purity: >98%
• Alloy: Alloy
• Shape: Round
• Type: Cemented Tungsten Carbide Rods
• Model NO.: AAAAA-RD-CARBIDE-GUN-DRILL-BLANK 2 H
• Surface: Sintered
• Grinding: H6 Ground
• Produdction Method: Extrusion or Cold Isostic Pressing
• Length: Full Length and Cut to Length
• Coolant Hole: Double Hole, Kidney Hole, Single Hole
• Tolerance: H4, H5, H6, H7 Standard
• Category: Deep Hole Drill Bits
• Grade: Submicron, Micron, Ultra Fine, Nano Grain Size
• Grinding Machines: Imported Centerless Grinding Machines
• Usage: Gun Drill Blanks
• Transport Package: Standard Packing for Cemented Carbide Rods
• Specification: CARBIDE RODS DIA 0.5 to 50 mm
• Trademark: RYDMET CARBIDE
• Origin: China
• HS Code: 82090030
• Production Capacity: 20 Tons/Month

Product Description

 

The Introduction of Cemented Tungsten Carbide Gun Drill Blanks

     Gun drilling, invented in Europe more than two centuries ago, is the process of drilling deep, straight holes in a variety of metal alloys. It was first invented in order to make long, straight gun barrels, hence the name gun drilling.

 

      The gundrilling process and tooling have been refined for maximum performance and use on modern, dedicated machinery. Firearms continue to be a common application for gundrilling. Other industries include diesel fuel components, medical tooling, plastic injection molds, and more.

 

       Our decicated engineers and skilled staff enable us to provide the best Cabide Gun Drill Blanks for the market domestic and abroad:

Single hole Carbide Gun Drill Blanks 

Double Hole Carbide  Gun Drill Blanks

kidney holes Carbide Gun Drill Blanks

 The Grades Recommended is RD06UF and RD10F.

The Grade of the Tungsten Carbide Rods
Properties of Grade		RD10F	RD10UF	RD12UF	RD06UF
Co	%	10	10	12	6
WC incl. Doping	%	90	90	88	94
Density	g/cm3	14.45	14.45	14.1	14.9
Vickers Hardness HV30	kg/mm2	1580	1790	1690	1890
Rockwell Hardness HRA	ISO3738	91.8	92.5	>92.5	93.5
TRS	N/mm2	3800	4000	4000	3900
Porosity	A	< 02	< 02	< 02	< 02
	B	0	0	0	0
	C	0	0	0	0
WC Grain Size	μm	0.8	0.5	0.4-0.5	0.5

** We have the Co 15%, medium Grain Carbide for Mold Materials, like Punches, cores..


                               Carbide Gun Drill Blanks in Double Holes

 

 

D(mm)	Tolerance	d1 (mm)	Tolerance (mm)	d2 (mm)	Tolerance (mm)	length (mm)	Tolerance (mm)
10	+0.5/+0.3	1.9	±0.2	2.3	±0.2	330	+3/0
10.5	+0.5/+0.3	1.9		2.3		330
11	+0.5/+0.3	2		2.4		330
12	+0.5/+0.3	2.2		2.5		330
12.5	+0.5/+0.3	2.2		2.5		330
13	+0.5/+0.3	2.4		2.7		330
13.5	+0.5/+0.3	2.4		2.7		330
14	+0.6+0.4	2.5		2.8		330
14.5	+0.6+0.4	2.5		2.8		330
15	+0.6+0.4	2.6		3.3		330
15.5	+0.6+0.4	2.8		3.3		330
16	+0.6+0.4	2.8		3.5		330
16.5	+0.6+0.4	3		3.5		330
17	+0.9+0.4	2.6		3.7		330
18	+0.9+0.4	3.2	±0.3	3.9	±0.3	330
19	+0.9+0.4	3.2		3.9		330
20	+0.9+0.4	3.5		4.2		330
21	+0.9+0.4	3.5		4.2		330
22	+0.9+0.4	3.5		4.5		330
23	+0.9+0.4	3.5		4.5		330
24	+0.9+0.4	4		5.5		330
25	+0.9+0.4	4		5.5		330
26	+0.9+0.4	4		5		330
27	+0.9+0.4	4.5		5.5		330
28	+0.9+0.4	4.5		5.5		330
29	+0.9+0.4	4.5		5.5		330
30	+0.9+0.4	5		6		330
31	+0.9+0.4	5		6		330
32	+0.9+0.4	5		6		330
33	+0.9+0.4	5		6		330
34	+0.9+0.4	5.5		6.5		330
35	+0.9+0.4	5.5		6.5		330
36	+0.9+0.4	6		7		330
37	+0.9+0.4	6		7		330
38	+0.9+0.4	6		7		330
39	+0.9+0.4	6.5		7.5		330
40	+0.9+0.4	6.5		7.5		330

**Carbide Gun Drill Blanks with Special Diameter and length can be made as request