LATHELAND® solid carbide twist drill 3×D, DIN 6537K, 140° point, TiAlN coated

LATHELAND® 3×D drill – dimension drawing (D, 140°, l1, l2, l3, L, d2)

LATHELAND

LATHELAND® Solid Carbide Twist Drill 3×D, DIN 6537K

In stock

SKU: LL-DS3-3

£33.04 GBP

Diameter

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Solid carbide twist drill for general engineering, for hole depths up to 3×D to DIN 6537K.

Specifications

Material	Solid carbide
Coating	TiAlN multilayer (hardness 3,300 HV, oxidation resistance up to 900 °C)
Flutes	2
Helix angle	30°
Point angle	140°
Standard	DIN 6537K
Shank tolerance	h6
Workpiece hardness	up to 45 HRC
Sizes available	110

Features

140° point angle for accurate centring
30° helix for efficient chip evacuation
Cylindrical shank to DIN 6535 HA
For workpieces up to 45 HRC

Size table (all dimensions in mm)

SKU	Ø D	l1 usable	l2 flute	l3 shank	L overall	d2 shank
LL-DS3-3	3	14	20	36	62	6
LL-DS3-3.1	3.1	14	20	36	62	6
LL-DS3-3.2	3.2	14	20	36	62	6
LL-DS3-3.3	3.3	14	20	36	62	6
LL-DS3-3.4	3.4	14	20	36	62	6
LL-DS3-3.5	3.5	14	20	36	62	6
LL-DS3-3.6	3.6	14	20	36	62	6
LL-DS3-3.7	3.7	14	20	36	62	6
LL-DS3-3.8	3.8	17	24	36	66	6
LL-DS3-3.9	3.9	17	24	36	66	6
LL-DS3-4	4	17	24	36	66	6
LL-DS3-4.1	4.1	17	24	36	66	6
LL-DS3-4.2	4.2	17	24	36	66	6
LL-DS3-4.3	4.3	17	24	36	66	6
LL-DS3-4.4	4.4	17	24	36	66	6
LL-DS3-4.5	4.5	17	24	36	66	6
LL-DS3-4.6	4.6	17	24	36	66	6
LL-DS3-4.7	4.7	17	24	36	66	6
LL-DS3-4.8	4.8	20	28	36	66	6
LL-DS3-4.9	4.9	20	28	36	66	6
LL-DS3-5	5	20	28	36	66	6
LL-DS3-5.1	5.1	20	28	36	66	6
LL-DS3-5.2	5.2	20	28	36	66	6
LL-DS3-5.3	5.3	20	28	36	66	6
LL-DS3-5.4	5.4	20	28	36	66	6
LL-DS3-5.5	5.5	20	28	36	66	6
LL-DS3-5.6	5.6	20	28	36	66	6
LL-DS3-5.7	5.7	20	28	36	66	6
LL-DS3-5.8	5.8	20	28	36	66	6
LL-DS3-5.9	5.9	20	28	36	66	6
LL-DS3-6	6	20	28	36	66	6
LL-DS3-6.1	6.1	24	34	36	79	8
LL-DS3-6.2	6.2	24	34	36	79	8
LL-DS3-6.3	6.3	24	34	36	79	8
LL-DS3-6.4	6.4	24	34	36	79	8
LL-DS3-6.5	6.5	24	34	36	79	8
LL-DS3-6.6	6.6	24	34	36	79	8
LL-DS3-6.7	6.7	24	34	36	79	8
LL-DS3-6.8	6.8	24	34	36	79	8
LL-DS3-6.9	6.9	24	34	36	79	8
LL-DS3-7	7	24	34	36	79	8
LL-DS3-7.1	7.1	29	41	36	79	8
LL-DS3-7.2	7.2	29	41	36	79	8
LL-DS3-7.3	7.3	29	41	36	79	8
LL-DS3-7.4	7.4	29	41	36	79	8
LL-DS3-7.5	7.5	29	41	36	79	8
LL-DS3-7.6	7.6	29	41	36	79	8
LL-DS3-7.7	7.7	29	41	36	79	8
LL-DS3-7.8	7.8	29	41	36	79	8
LL-DS3-7.9	7.9	29	41	36	79	8
LL-DS3-8	8	29	41	36	79	8
LL-DS3-8.1	8.1	35	47	40	89	10
LL-DS3-8.2	8.2	35	47	40	89	10
LL-DS3-8.3	8.3	35	47	40	89	10
LL-DS3-8.4	8.4	35	47	40	89	10
LL-DS3-8.5	8.5	35	47	40	89	10
LL-DS3-8.6	8.6	35	47	40	89	10
LL-DS3-8.7	8.7	35	47	40	89	10
LL-DS3-8.8	8.8	35	47	40	89	10
LL-DS3-8.9	8.9	35	47	40	89	10
LL-DS3-9	9	35	47	40	89	10
LL-DS3-9.1	9.1	35	47	40	89	10
LL-DS3-9.2	9.2	35	47	40	89	10
LL-DS3-9.3	9.3	35	47	40	89	10
LL-DS3-9.4	9.4	35	47	40	89	10
LL-DS3-9.5	9.5	35	47	40	89	10
LL-DS3-9.6	9.6	35	47	40	89	10
LL-DS3-9.7	9.7	35	47	40	89	10
LL-DS3-9.8	9.8	35	47	40	89	10
LL-DS3-9.9	9.9	35	47	40	89	10
LL-DS3-10	10	35	47	40	89	10
LL-DS3-10.1	10.1	40	55	45	102	12
LL-DS3-10.2	10.2	40	55	45	102	12
LL-DS3-10.3	10.3	40	55	45	102	12
LL-DS3-10.4	10.4	40	55	45	102	12
LL-DS3-10.5	10.5	40	55	45	102	12
LL-DS3-10.6	10.6	40	55	45	102	12
LL-DS3-10.7	10.7	40	55	45	102	12
LL-DS3-10.8	10.8	40	55	45	102	12
LL-DS3-10.9	10.9	40	55	45	102	12
LL-DS3-11	11	40	55	45	102	12
LL-DS3-11.1	11.1	40	55	45	102	12
LL-DS3-11.2	11.2	40	55	45	102	12
LL-DS3-11.3	11.3	40	55	45	102	12
LL-DS3-11.4	11.4	40	55	45	102	12
LL-DS3-11.5	11.5	40	55	45	102	12
LL-DS3-11.6	11.6	40	55	45	102	12
LL-DS3-11.7	11.7	40	55	45	102	12
LL-DS3-11.8	11.8	40	55	45	102	12
LL-DS3-11.9	11.9	40	55	45	102	12
LL-DS3-12	12	40	55	45	102	12
LL-DS3-12.5	12.5	43	60	45	107	14
LL-DS3-12.7	12.7	43	60	45	107	14
LL-DS3-13	13	43	60	45	107	14
LL-DS3-13.5	13.5	43	60	45	107	14
LL-DS3-13.7	13.7	43	60	45	107	14
LL-DS3-13.8	13.8	43	60	45	107	14
LL-DS3-14	14	43	60	45	107	14
LL-DS3-14.5	14.5	45	65	48	115	16
LL-DS3-15	15	45	65	48	115	16
LL-DS3-15.5	15.5	45	65	48	115	16
LL-DS3-16	16	45	65	48	115	16
LL-DS3-16.5	16.5	51	73	48	123	18
LL-DS3-17	17	51	73	48	123	18
LL-DS3-17.5	17.5	51	73	48	123	18
LL-DS3-18	18	51	73	48	123	18
LL-DS3-18.5	18.5	55	79	50	131	20
LL-DS3-19	19	55	79	50	131	20
LL-DS3-19.5	19.5	55	79	50	131	20
LL-DS3-20	20	55	79	50	131	20

Recommended cutting data

Starting values for stable conditions with good coolant supply. Adjust for your machine, set-up and workholding. For diameters between the listed values, interpolate between the neighbouring rows.
Spindle speed n = Vc × 1000 / (π × D) · Feed rate vf = n × fz × z (drills: vf = n × fn).

Drilling – conventional (external coolant)

Workpiece material	Carbon steel	Alloy steel 520–1200 N/mm²	Prehardened steel 35–45 HRC	Stainless steel high machinability	Stainless steel low machinability	Grey cast iron	Ductile cast iron	Titanium alloy	Nickel alloy	Wrought aluminium Si < 9%	Cast aluminium Si ≥ 9%	Copper alloy
ISO group	P01	P02	P03	M01	M02	K01	K02	S01	S02	N01	N02	N03
Vc (m/min)	80	60	40	30	25	75	70	20	12	150	130	100
Ø D (mm)	fn (mm/rev)
3	0.060	0.055	0.040	0.044	0.041	0.061	0.039	0.032	0.023	0.055	0.062	0.060
4	0.084	0.076	0.055	0.063	0.060	0.083	0.055	0.050	0.040	0.077	0.085	0.082
5	0.110	0.099	0.071	0.075	0.075	0.104	0.072	0.062	0.050	0.100	0.109	0.106
6	0.135	0.124	0.088	0.100	0.093	0.126	0.089	0.073	0.057	0.124	0.135	0.131
7	0.162	0.149	0.105	0.114	0.108	0.149	0.108	0.090	0.083	0.149	0.161	0.158
8	0.194	0.177	0.123	0.142	0.140	0.174	0.128	0.113	0.100	0.177	0.190	0.187
9	0.221	0.206	0.142	0.155	0.156	0.197	0.150	0.113	0.100	0.204	0.218	0.215
10	0.254	0.237	0.161	0.180	0.188	0.219	0.172	0.143	0.150	0.235	0.249	0.246
11	0.283	0.269	0.182	0.200	0.188	0.246	0.196	0.167	0.150	0.266	0.281	0.278
12	0.318	0.303	0.203	0.225	0.214	0.268	0.221	0.167	0.150	0.300	0.314	0.306
13	0.345	0.320	0.216	0.225	0.214	0.290	0.235	0.200	0.200	0.319	0.332	0.326
14	0.358	0.336	0.229	0.257	0.250	0.313	0.248	0.200	0.200	0.329	0.350	0.347
15	0.394	0.351	0.240	0.243	0.233	0.324	0.261	0.200	0.200	0.350	0.360	0.363
16	0.406	0.364	0.252	0.283	0.280	0.353	0.273	0.250	0.167	0.363	0.383	0.377
17	0.427	0.376	0.263	0.283	0.280	0.373	0.284	0.250	0.167	0.369	0.401	0.383
18	0.420	0.387	0.274	0.267	0.260	0.389	0.294	0.250	0.167	0.385	0.403	0.401
19	0.443	0.397	0.283	0.267	0.260	0.408	0.304	0.250	0.167	0.388	0.421	0.409
20	0.462	0.406	0.292	0.300	0.300	0.403	0.313	0.225	0.200	0.408	0.423	0.413

Drilling – high performance (external coolant)

Workpiece material	Carbon steel	Alloy steel 520–1200 N/mm²	Prehardened steel 35–45 HRC	Stainless steel high machinability	Stainless steel low machinability	Grey cast iron	Ductile cast iron	Titanium alloy	Nickel alloy	Wrought aluminium Si < 9%	Cast aluminium Si ≥ 9%	Copper alloy
ISO group	P01	P02	P03	M01	M02	K01	K02	S01	S02	N01	N02	N03
Vc (m/min)	105	80	50	40	35	95	70	25	20	200	165	140
Ø D (mm)	fn (mm/rev)
3	0.072	0.061	0.060	0.049	0.042	0.070	0.052	0.037	0.036	0.058	0.063	0.062
4	0.100	0.085	0.083	0.069	0.061	0.095	0.073	0.055	0.056	0.081	0.087	0.085
5	0.128	0.111	0.107	0.088	0.074	0.120	0.096	0.069	0.069	0.104	0.111	0.110
6	0.157	0.138	0.132	0.109	0.095	0.145	0.119	0.086	0.082	0.128	0.138	0.136
7	0.188	0.166	0.157	0.132	0.113	0.170	0.144	0.100	0.090	0.155	0.164	0.165
8	0.221	0.197	0.184	0.156	0.136	0.200	0.171	0.130	0.125	0.183	0.194	0.194
9	0.250	0.230	0.212	0.173	0.146	0.226	0.200	0.144	0.125	0.211	0.222	0.224
10	0.285	0.264	0.241	0.208	0.167	0.252	0.230	0.175	0.143	0.241	0.254	0.257
11	0.319	0.300	0.272	0.233	0.182	0.282	0.263	0.175	0.167	0.272	0.287	0.290
12	0.361	0.338	0.303	0.255	0.200	0.308	0.296	0.200	0.167	0.300	0.321	0.318
13	0.385	0.357	0.323	0.280	0.222	0.333	0.314	0.200	0.200	0.322	0.339	0.339
14	0.413	0.375	0.342	0.270	0.250	0.359	0.332	0.233	0.200	0.335	0.357	0.361
15	0.422	0.391	0.360	0.300	0.238	0.371	0.348	0.233	0.200	0.349	0.368	0.378
16	0.457	0.406	0.377	0.325	0.271	0.405	0.365	0.260	0.250	0.365	0.391	0.393
17	0.475	0.419	0.394	0.313	0.271	0.428	0.379	0.260	0.250	0.374	0.409	0.399
18	0.489	0.431	0.409	0.313	0.257	0.447	0.393	0.260	0.250	0.383	0.412	0.418
19	0.511	0.442	0.423	0.343	0.300	0.469	0.406	0.260	0.250	0.394	0.429	0.426
20	0.529	0.452	0.437	0.329	0.283	0.463	0.418	0.300	0.225	0.406	0.432	0.430

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