Carbide Drill Bit for Deep Hole

Special 4-face grinding with cobalt collar A coating (TiAlN) on the head protects the cutting edge area to a large extent and prevents wear effectively. Optimised flute type greatly improves the chip removal performance of deep hole drilling, helix angle, unique tool body guidance improves the machining accuracy of the hole.

Specifications of Carbide Drill Bit for Deep Hole

Solid carbide spiral drill for deep hole machining

Engineering Data

special four-sided grinding
special point grinding
special chip flute geometry
4 guide chamfer
unique cutter guide to improve the processing precision of hole

Solid carbide spiral drill for deep hole machining

dl	L3	L2	L1	d2	dl	L3	L2	L1	d2
(h7)	mm	mm	mm	(h6)	(h7)	mm	mm	mm	(h6)
mm				mm	mm				mm
3	45	51	95	6	7	105	119	160	8
4	60	68	110	6	8	120	136	175	8
4.5	57.5	76.5	120	6	8.5	127.5	144.5	190	10
5	75	85	125	6	10	150	170	215	10
5.5	82.5	93.5	135	6	12	180	204	255	12
6	90	102	140	6	14	210	238	285	14
6.5	97.5	10.5	150	8

Engineering Data

special four-sided grinding
special point grinding
special chip flute geometry
4 guide chamfer
unique cutter guide to improve the processing precision of hole

Solid carbide spiral drill for deep hole machining

d1	L3	L2	L1	d2	d1	L3	L2	L1	d2
(h7)	mm	mm	mm	(h6)	(h7)	mm	mm	mm	(h6)
mm				mm	mIm				Ⅲ
3	60	66	110	6	6.5	130	143	185	8
4	80	88	130	6	7	140	154	195	8
4.5	90	99	140	6	8	160	176	215	8
5	100	10	150	6	8.5	170	187	230	10
5.5	110	121	160	6	10	200	220	265	10
6	120	132	170	6	12	240	264	315	12

Deep hole machining with integral hard alloy deep hole drill 25 × D/30 × D

Engineering Data

special four-sided grinding
special point grinding
special chip flute geometry
4 guide chamfer
unique cutter guide to improve the processing precision of hole

Deep hole machining with integral hard alloy deep hole drill 25 × D/30 × D

d1				d2	dl				d2
(h7)	L3	L2	L1	(h6)	(h7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
3	75	81	125	6	5.5	37.5	48.5	90	6
4	100	108	150	6	6	150	162	200	6
4.5	112.5	121.5	165	6	6.5	62.5	75.5	215	8
5	125	135	175	6	8	200	216	255	8
					10	250	270	315	10

Engineering Data

special four-sided grinding
special point grinding
special chip flute geometry
4 guide chamfer
unique cutter guide to improve the processing precision of hole

Deep hole machining with integral hard alloy deep hole drill 25 × D/30 × D

dl				d2	d1				d2
(h7)	L3	L2	L1	(h6)	(h7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
3	90	96	140	6	5.5	165	176	215	6
4	120	128	170	6	6	180	192	230	6
4.5	135	144	185	6	6.5	195	208	250	8
5	150	160	200	6	7	210	224	265	8

Deep hole machining with integral hard alloy deep hole drill 40 × D/15 × D

Engineering Data

special four-sided grinding
special point grinding
special chip flute geometry
4 guide chamfer
unique cutter guide to improve the processing precision of hole

Deep hole machining with integral hard alloy deep hole drill 40 × D/15 × D

d1				d2	dl				d2
(h7)	L3	L2	L1	(h6)	(h7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mim	mm	mm	mm	mm
4	160	68	210	6	5	200	210	250	6

Engineering Data

special four-sided grinding
special point grinding
special polish chip flute geometry
4 guide chamfer
30° RH helix
unique cutter guide to improve the processing precision of hole

Deep hole machining with integral hard alloy deep hole drill 40 × D/15 × D

d1				d2	d1				d2
(h7)	L3	L2	L1	(h6)	(h7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	nm	mm
3	45	51	95	6	7	105	119	160	8
4	60	68	10	6	8	120	136	175	8
4.5	67	76.5	20	6	8.5	127.5	144.5	190	10
5	75	85	125	6
5.5	82.5	93.5	135	6	10	150	170	215	10
6	90	102	140	6	12	180	204	255	12
6.5	97.5	110.5	150	8	14	210	238	285	14

Deep hole machining with integral hard alloy deep hole drill 20 × D/25 × D

Engineering Data

special four-sided grinding
special point grinding
special polish chip flute geometry
4 guide chamfer
30° RH helix
unique cutter guide to improve the processing precision of hole

Deep hole machining with integral hard alloy deep hole drill 20 × D/25 × D

dl				d2	dl				cd2
(h7)	L3	L2	L1	(h6)	(h7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
3	60	66	110	6	6.5	130	143	185	8
4	80	88	130	6	7	140	154	195	8
4.5	90	99	140	6	8	160	176	215	8
5	100	10	150	6	8.5	170	187	230	10
5.5	110	121	160	6	10	200	220	265	10
6	120	32	170	6	12	240	264	315	12

Engineering Data

special four-sided grinding
special point grinding
special polish chip flute geometry
30° RH helix
unique cutter guide to improve the processing precision of hole

Deep hole machining with integral hard alloy deep hole drill 20 × D/25 × D

d1	L3			d2	d1	L3			d2
(h7) mm	mm	L2	L1	(h6)	(h7)	mm	L2	L1	(h6)
		mm	mm	mm	mm		mm	mm	mm
3	75	81	125	6	6	150	162	200	6
4	100	108	150	6	6.5	162	175.5	215	8
4.5	112.5	21.5	165	6	8	200	216	255	8
5	125	135	175	6	10	250	270	315	10
5.5	137.5	148.5	190	6