Carbide drill bits

KERNVEX CNC High Quality Tungsten Steel Carbide Drill Bits For Aluminum

Range reference: KVX-003

Material: Solid carbide
Process: Fully Gorund (Roll Forged & Polished, Roll Forged, Milled are Available)
Size: Standard size or as request
Point Type: 118 Degree Regular Point (1-3mm); 138 Degree Split Point(3-20mm)

Material: 0.8um ultra-fine grain size, 10% cobalt Coating: Uncoated Design: high helix angle design, sharo point geometry Available drilling depths: 2XD, 3XD,5XD

Enquire about this tool →

Technical data

Product Name	Drill Bit for Aluminum
Material	Solid carbide
Process	Fully Gorund (Roll Forged & Polished, Roll Forged, Milled are Available)
Size	Standard size or as request
Point Type	118 Degree Regular Point (1-3mm); 138 Degree Split Point(3-20mm)
Shank Type	Straight Shank (Tree Flats Shank, 1/2" Shank Sliver & Deming, Reduced Shank,1/4" Quick Change Hex Shank are Available)
Surface Finish	Amber Color (Bright, Black Oxide, Titanium, Black & Gold, are Available)
Package	Plastic Box or as request

Additional technical data

Product Code	Blade diameter	Blade Length H			Full L			Shank D
Product Code	Blade diameter	3XD	5XD	8XD	3XD	5XD	8XD	3XD	5XD	8XD
EXNJ00400	4	24	36	43	66	74	81	6	6	6
EXNJ00450	4.5	24	36	43	66	74	81	6	6	6
EXNJ00500	5	28	44	57	66	82	95	6	6	6
EXNJ00550	5.5	28	44	57	66	82	95	6	6	6
EXNJ00600	6	28	44	57	66	82	95	6	6	6
EXNJ00650	6.5	34	53	76	79	91	114	8	8	8
EXNJ00700	7	34	53	76	79	91	114	8	8	8
EXNJ00750	7.5	41	53	76	79	91	116	8	8	8
EXNJ00800	8	41	53	76	79	91	116	8	8	8
EXNJ00850	8.5	47	61	95	89	103	142	10	10	10
EXNJ00P00	9	47	61	95	89	103	142	10	10	10
EXNJ00950	9.5	47	61	95	89	103	142	10	10	10
EXNJ01000	10	47	61	95	89	103	142	10	10	10
EXNJ01050	10.5	55	71	114	102	118	162	12	12	12
EXNJ01100	11	55	71	114	102	118	162	12	12	12
EXNJ01150	11.5	55	71	114	102	118	162	12	12	12
EXNJ01200	12	55	71	114	102	118	162	12	12	12
EXNJ01250	12.5	60	77	133	107	124	178	14	14	14
EXNJ01300	13	60	77	133	107	124	178	14	14	14
EXNJ01350	13.5	60	77	133	107	124	178	14	14	14
EXNJ01400	14	60	77	133	107	124	178	14	14	14
EXNJ01450	14.5	65	83	152	115	133	204	16	16	16
EXNJ01500	15	65	83	152	115	133	204	16	16	16
EXNJ01550	15.5	65	83	152	115	133	204	16	16	16
EXNJ01800	16	65	83	152	115	133	204	16	16	16
EXNJ01850	16.5	73	93	171	123	143	223	18	18	18
EXNJ01700	17	73	93	171	123	143	223	18	18	18
EXNJ01750	17.5	73	93	171	123	143	223	18	18	18
EXNJ01800	18	73	93	171	123	143	223	18	18	18
EXNJ01850	18.5	79	101	-	131	153	-	20	20	20
EXNJ01900	19	79	101	-	131	153	-	20	20	20
EXNJ01950	19.5	79	101	-	131	153	-	20	20	20
EXNJ02000	20	79	101	-	131	153	-	20	20	20

Technical notes

This solid carbide drill is specially designed for aluminum and non-ferrous metal machining .
By combining ultra-sharp cutting edges, polished flutes, optimized point geometry, and low-friction coating options, it delivers excellent chip evacuation , high drilling efficiency, and superior hole surface quality.
Ideal for high-speed drilling , mass production, and applications where surface finish and chip control are critical.
Premium Carbide Substrate
• Manufactured from imported MG-grade carbide rods
• Ultra-fine grain size: 0.8 μm
• 10% cobalt content for excellent toughness
• Optimized balance between sharpness and strength for aluminum machining
The substrate ensures high edge sharpness while maintaining sufficient rigidity at high spindle speeds.
Optimized Geometry for Aluminum Drilling
• High helix angle design for fast chip evacuation
• Sharp point geometry for easy material engagement
• Optimized cutting edge geometry reduces:
• Built-up edge (BUE)
• Material adhesion
• Cutting resistance
• Designed to allow chips to flow smoothly without clogging
This geometry enables stable drilling even at very high cutting speeds.
Polished Flute Design
• Mirror-polished flutes reduce friction during chip evacuation
• Prevents aluminum chips from sticking to the tool
• Hole surface finish
• Cutting efficiency
• Tool life in continuous production
Coating Options for Aluminum
• Uncoated or polished surface for maximum sharpness
• Optional low-friction coating solutions for extended tool life
• Designed to minimize adhesion and heat generation during aluminum machining
The coating strategy focuses on chip release and surface quality, rather than hardness alone.
Application Materials
Suitable for machining:
• Aluminum alloys
• Die-cast aluminum
• Pure aluminum
• Copper and non-ferrous metals
Widely used in:
• Automotive components
• Aerospace parts
• Electronics housings
• General aluminum machining industries

Technical illustrations and dimension data