50.00 mm Screw machine length twist drill, over 1 in. (reduced shank)

D 1.9685 in · 50 mm

ASMESTD: ASME B94.11M-1993SOURCE: Table 3B · p. 33DESIGNATION: METRICSHANK: STRAIGHT (REDUCED)FLUTES: 2DATA CHECK: OK

Drawing

Dimensions

Symbol	Dimension	in	mm
D	Diameter	1.9685	50
F	Flute length	5 5/8	143
L	Overall length	8 1/2	216
B	Body length	—	—
S	Minimum shank length	—	—
N	Maximum neck length	—	—
A	Shank diameter	1.4961	38
MT	Morse taper number	—

— : the table gives no value for this drill.

Tolerances (Table 10)

Element	in	mm
Point diameter	+0.0000 / −0.0015	+0.000 / −0.038
Shank diameter	+0.0005 / −0.0030	+0.013 / −0.076
Back taper per unit flute length	0.0004 to 0.0015	0.010 to 0.038
Flute length F	+1/4 / −1/4	+6.4 / −6.4
Overall length L	+1/4 / −1/4	+6.4 / −6.4
Included point angle	118° ±2°
Lip height TIV	0.0060	0.152
Centrality of web TIV	0.0100	0.254
Flute spacing TIV	0.0260	0.660
Flute spacing, actual deviation	0.0130	0.330
Max. runout TIR	0.004

This diameter in other tables

50 mm in every length series that lists it

50.00 mm · Table 5Taper shank twist drill, regularF 264 mm · L 441 mm · MT5 50.00 mm · Table 5Taper shank twist drill, smaller than regularF 270 mm · L 422 mm · MT4

Data check

Result: OK

ASME B94.11M Table 3B, printed page 33 (scan page 39).

All values for 50.00 mm (Table 3B)every column of the Designations row

Key	T3B\|50.00 mm\|-
Designation	50.00 mm
Designation type	Metric
All designations on printed row	50.00 mm
Series	T3B
Source table	Table 3B
Drill style	Screw machine length twist drill, over 1 in. (reduced shank)
Shank type	Straight (reduced)
Shank option	-
Flutes	2 flute
Morse taper no. (A)	—
Diameter D (in)	1.9685
Diameter equiv. (mm)	50
Flute length F (in)	5 5/8
Flute length F (mm)	143
Overall length L (in)	8 1/2
Overall length L (mm)	216
Body length B (in)	—
Body length B (mm)	—
Min shank length S (in)	—
Min shank length S (mm)	—
Max neck length N (in)	—
Max neck length N (mm)	—
Shank diameter A (in)	1.4961
Shank diameter A (mm)	38
Point dia. tol. + (in)	0.0000
Point dia. tol. - (in)	0.0015
Point dia. tol. + (mm)	0.000
Point dia. tol. - (mm)	0.038
Shank dia. tol. + (in)	0.0005
Shank dia. tol. - (in)	0.0030
Shank dia. tol. + (mm)	0.013
Shank dia. tol. - (mm)	0.076
Back taper per unit flute length (in)	0.0004 to 0.0015
Back taper per unit flute length (mm)	0.010 to 0.038
F tol. + (in)	1/4
F tol. - (in)	1/4
F tol. + (mm)	6.4
F tol. - (mm)	6.4
L tol. + (in)	1/4
L tol. - (in)	1/4
L tol. + (mm)	6.4
L tol. - (mm)	6.4
Included point angle (deg)	118
Point angle tol.	±2°
Lip height TIV (in)	0.0060
Lip height TIV (mm)	0.152
Centrality of web TIV (in)	0.0100
Centrality of web TIV (mm)	0.254
Flute spacing TIV (in)	0.0260
Flute spacing TIV (mm)	0.660
Flute spacing actual dev. (in)	0.0130
Flute spacing actual dev. (mm)	0.330
Max runout TIR (in) per Table 10	0.004
Check: D x 25.4 - printed mm	0
Check: F in x 25.4 - F mm	-0.12
Check: L in x 25.4 - L mm	-0.1
Check result	OK
Notes	—
PDF page	39
Printed page	33

Table 3B: Screw machine length twist drill, over 1 in. (reduced shank)

30 drills, smallest first

Drill	Type	D in	D mm	F in	F mm	L in	L mm	Shank / flutes
25.50 mm	Metric	1.0039	25.5	4	102	6 1/4	159	Straight (reduced)
26.00 mm	Metric	1.0236	26	4	102	6 1/4	159	Straight (reduced)
1 1/16 in	Fraction	1.0625	26.988	4	102	6 1/4	159	Straight (reduced)
28.00 mm	Metric	1.1024	28	4	102	6 3/8	162	Straight (reduced)
1 1/8 in	Fraction	1.125	28.575	4	102	6 3/8	162	Straight (reduced)
30.00 mm	Metric	1.1811	30	4 1/4	108	6 5/8	168	Straight (reduced)
1 3/16 in	Fraction	1.1875	30.162	4 1/4	108	6 5/8	168	Straight (reduced)
1 1/4 in	Fraction	1.25	31.75	4 3/8	111	6 3/4	171	Straight (reduced)
32.00 mm	Metric	1.2598	32	4 3/8	111	7	178	Straight (reduced)
1 5/16 in	Fraction	1.3125	33.338	4 3/8	111	7	178	Straight (reduced)
34.00 mm	Metric	1.3386	34	4 1/2	114	7 1/8	181	Straight (reduced)
1 3/8 in	Fraction	1.375	34.925	4 1/2	114	7 1/8	181	Straight (reduced)
36.00 mm	Metric	1.4173	36	4 3/4	121	7 3/8	187	Straight (reduced)
1 7/16 in	Fraction	1.4375	36.512	4 3/4	121	7 3/8	187	Straight (reduced)
38.00 mm	Metric	1.4961	38	4 7/8	124	7 1/2	190	Straight (reduced)
1 1/2 in	Fraction	1.5	38.1	4 7/8	124	7 1/2	190	Straight (reduced)
1 9/16 in	Fraction	1.5625	39.688	4 7/8	124	7 3/4	197	Straight (reduced)
40.00 mm	Metric	1.5748	40	4 7/8	124	7 3/4	197	Straight (reduced)
1 5/8 in	Fraction	1.625	41.275	4 7/8	124	7 3/4	197	Straight (reduced)
42.00 mm	Metric	1.6535	42	5 1/8	130	8	203	Straight (reduced)
1 11/16 in	Fraction	1.6875	42.862	5 1/8	130	8	203	Straight (reduced)
44.00 mm	Metric	1.7323	44	5 1/8	130	8	203	Straight (reduced)
1 3/4 in	Fraction	1.75	44.45	5 1/8	130	8	203	Straight (reduced)
46.00 mm	Metric	1.811	46	5 3/8	137	8 1/4	210	Straight (reduced)
1 13/16 in	Fraction	1.8125	46.038	5 3/8	137	8 1/4	210	Straight (reduced)
1 7/8 in	Fraction	1.875	47.625	5 3/8	137	8 1/4	210	Straight (reduced)
48.00 mm	Metric	1.8898	48	5 5/8	143	8 1/2	216	Straight (reduced)
1 15/16 in	Fraction	1.9375	49.212	5 5/8	143	8 1/2	216	Straight (reduced)
50.00 mm	Metric	1.9685	50	5 5/8	143	8 1/2	216	Straight (reduced)
2 in	Fraction	2	50.8	5 5/8	143	8 1/2	216	Straight (reduced)

Table 3B as tabulatedone line per printed row, every column

Designation(s) on printed row	D (in)	Equiv. (mm)	F (in)	F (mm)	L (in)	L (mm)	Shank dia A (in)	Shank dia A (mm)	Notes	PDF page	Printed page
25.50 mm	1.0039	25.5	4	102	6 1/4	159	0.9843	25	—	39	33
26.00 mm	1.0236	26	4	102	6 1/4	159	0.9843	25	—	39	33
1 1/16 in	1.0625	26.988	4	102	6 1/4	159	1	25.4	—	39	33
28.00 mm	1.1024	28	4	102	6 3/8	162	0.9843	25	—	39	33
1 1/8 in	1.125	28.575	4	102	6 3/8	162	1	25.4	—	39	33
30.00 mm	1.1811	30	4 1/4	108	6 5/8	168	0.9843	25	—	39	33
1 3/16 in	1.1875	30.162	4 1/4	108	6 5/8	168	1	25.4	—	39	33
1 1/4 in	1.25	31.75	4 3/8	111	6 3/4	171	1	25.4	—	39	33
32.00 mm	1.2598	32	4 3/8	111	7	178	1.2402	31.5	—	39	33
1 5/16 in	1.3125	33.338	4 3/8	111	7	178	1.25	31.75	—	39	33
34.00 mm	1.3386	34	4 1/2	114	7 1/8	181	1.2402	31.5	—	39	33
1 3/8 in	1.375	34.925	4 1/2	114	7 1/8	181	1.25	31.75	—	39	33
36.00 mm	1.4173	36	4 3/4	121	7 3/8	187	1.2402	31.5	—	39	33
1 7/16 in	1.4375	36.512	4 3/4	121	7 3/8	187	1.25	31.75	—	39	33
38.00 mm	1.4961	38	4 7/8	124	7 1/2	190	1.2402	31.5	—	39	33
1 1/2 in	1.5	38.1	4 7/8	124	7 1/2	190	1.25	31.75	—	39	33
1 9/16 in	1.5625	39.688	4 7/8	124	7 3/4	197	1.5	38.1	—	39	33
40.00 mm	1.5748	40	4 7/8	124	7 3/4	197	1.4961	38	—	39	33
1 5/8 in	1.625	41.275	4 7/8	124	7 3/4	197	1.5	38.1	—	39	33
42.00 mm	1.6535	42	5 1/8	130	8	203	1.4961	38	—	39	33
1 11/16 in	1.6875	42.862	5 1/8	130	8	203	1.5	38.1	—	39	33
44.00 mm	1.7323	44	5 1/8	130	8	203	1.4961	38	—	39	33
1 3/4 in	1.75	44.45	5 1/8	130	8	203	1.5	38.1	—	39	33
46.00 mm	1.811	46	5 3/8	137	8 1/4	210	1.4961	38	—	39	33
1 13/16 in	1.8125	46.038	5 3/8	137	8 1/4	210	1.5	38.1	—	39	33
1 7/8 in	1.875	47.625	5 3/8	137	8 1/4	210	1.5	38.1	—	39	33
48.00 mm	1.8898	48	5 5/8	143	8 1/2	216	1.4961	38	—	39	33
1 15/16 in	1.9375	49.212	5 5/8	143	8 1/2	216	1.5	38.1	—	39	33
50.00 mm	1.9685	50	5 5/8	143	8 1/2	216	1.4961	38	—	39	33
2 in	2	50.8	5 5/8	143	8 1/2	216	1.5	38.1	—	39	33

Type	Size	A in	A mm	D in	D mm	E in	E mm	C in	C mm	L in	L mm
Plain	00	3/32	2.38	.025	0.64	-	-	.030	0.76	1 1/8	29
Plain	0	3/32	2.38	1/32	0.79	-	-	.038	0.97	1 1/8	29
Plain	1	1/8	3.18	3/64	1.19	-	-	3/64	1.19	1 1/4	32
Plain	2	3/16	4.76	5/64	1.98	-	-	5/64	1.98	1 7/8	48
Plain	3	1/4	6.35	7/64	2.78	-	-	7/64	2.78	2	51
Plain	4	5/16	7.94	1/8	3.18	-	-	1/8	3.18	2 1/8	54
Plain	5	7/16	11.11	3/16	4.76	-	-	3/16	4.76	2 3/4	70
Plain	6	1/2	12.7	7/32	5.56	-	-	7/32	5.56	3	76
Plain	7	5/8	15.88	1/4	6.35	-	-	1/4	6.35	3 1/4	83
Plain	8	3/4	19.05	5/16	7.94	-	-	5/16	7.94	3 1/2	89
Bell	11	1/8	3.18	3/64	1.19	0.10	2.5	3/64	1.19	1 1/4	32
Bell	12	3/16	4.76	1/16	1.59	0.15	3.8	1/16	1.59	1 7/8	48
Bell	13	1/4	6.35	3/32	2.38	0.20	5.1	3/32	2.38	2	51
Bell	14	5/16	7.94	7/64	2.78	0.25	6.4	7/64	2.78	2 1/4	54
Bell	15	7/16	11.11	5/32	3.97	0.35	8.1	5/32	3.97	2 3/4	70
Bell	16	1/2	12.7	3/16	4.76	0.40	10.2	3/16	4.76	3	76
Bell	17	5/8	15.88	7/32	5.56	0.50	12.7	7/32	5.56	3 1/4	83
Bell	18	3/4	19.05	1/4	6.35	0.60	15.2	1/4	6.35	3 1/2	89

Diameter range (in)	Diameter range (mm)	Plus (+) in	Minus (-) in	Plus (+) mm	Minus (-) mm
From #97 through #81	From 0.15 through 0.33	0.0002	0.0002	0.005	0.005
Over #81 through 1/8	Over 0.33 through 3.18	0.0000	0.0005	0.000	0.013
Over 1/8 through 1/4	Over 3.18 through 6.35	0.0000	0.0007	0.000	0.018
Over 1/4 through 1/2	Over 6.35 through 12.70	0.0000	0.0010	0.000	0.025
Over 1/2 through 1	Over 12.70 through 25.40	0.0000	0.0012	0.000	0.030
Over 1 through 2	Over 25.40 through 50.80	0.0000	0.0015	0.000	0.038
Over 2 through 3 1/2	Over 50.80 through 88.90	0.0000	0.0020	0.000	0.051

Diameter range (in)	Diameter range (mm)	Plus (+) in	Minus (-) in	Plus (+) mm	Minus (-) mm
From #97 through #81	From 0.15 through 0.33	0.0002 (minus)	0.0002	0.005 (minus)	0.005
Over #81 through 1/8	Over 0.33 through 3.18	0.0000	0.0025	0.000	0.064
Over 1/8 through 1/4	Over 3.18 through 6.35	0.0005	0.0030	0.013	0.076
Over 1/4 through 1/2	Over 6.35 through 12.70	0.0005	0.0045	0.013	0.114
Over 1/2 through 2	Over 12.70 through 50.80	0.0005	0.0030	0.013	0.076

Diameter range (in)	Diameter range (mm)	Tolerance (in)	Tolerance (mm)
From #97 through #81	From 0.15 through 0.33	None	None
Over #81 through 1/8	Over 0.33 through 3.18	0.0000 to 0.0008	0.000 to 0.020
Over 1/8 through 1/4	Over 3.18 through 6.35	0.0002 to 0.0008	0.005 to 0.020
Over 1/4 through 1/2	Over 6.35 through 12.70	0.0002 to 0.0009	0.005 to 0.022
Over 1/2 through 1	Over 12.70 through 25.40	0.0003 to 0.0011	0.007 to 0.028
Over 1 through 3 1/2	Over 25.40 through 88.90	0.0004 to 0.0015	0.010 to 0.038

Diameter range (in)	Diameter range (mm)	Plus (+) in	Minus (-) in	Plus (+) mm	Minus (-) mm
From #97 through #81	From 0.15 through 0.33	1/64	1/64	0.4	0.4
Over #81 through 1/8	Over 0.33 through 3.18	1/8	1/16	3.2	1.6
Over 1/8 through 1/2	Over 3.18 through 12.70	1/8	1/8	3.2	3.2
Over 1/2 through 1	Over 12.70 through 25.40	1/4	1/8	6.4	3.2
Over 1 through 2	Over 25.40 through 50.80	1/4	1/4	6.4	6.4
Over 2 through 3 1/2	Over 50.80 through 88.90	3/8	3/8	9.5	9.5

50.00 mm Screw machine length twist drill, over 1 in. (reduced shank)

Drawing

Dimensions

Tolerances (Table 10)

This diameter in other tables

Data check

Table 3B: Screw machine length twist drill, over 1 in. (reduced shank)

Drill types in the standard

Combined drills and countersinks (Table 9A)

Tolerances, tangs, split points, checks and errata

Tapped-hole drills for common threads

About these values

Diameter range (in)	Diameter range (mm)	Included angle (deg)	Tolerance
From 1/16 through 1/2	From 1.59 through 12.70	118	±5°
Over 1/2 through 1 1/2	Over 12.70 through 38.10	118	±3°
Over 1 1/2 through 3 1/2	Over 38.10 through 88.90	118	±2°

Diameter range (in)	Diameter range (mm)	Lip height TIV (in)	Lip height TIV (mm)	Centrality of web TIV (in)	Centrality of web TIV (mm)	Flute spacing TIV (in)	Flute spacing TIV (mm)	Flute spacing actual deviation (in)	Flute spacing actual deviation (mm)
From 1/16 through 1/8	From 1.59 through 3.18	0.0020	0.051	0.0030	0.076	0.0030	0.076	0.0015	0.038
Over 1/8 through 1/4	Over 3.18 through 6.35	0.0030	0.076	0.0040	0.102	0.0060	0.152	0.0030	0.076
Over 1/4 through 1/2	Over 6.35 through 12.70	0.0040	0.102	0.0050	0.127	0.0100	0.254	0.0050	0.127
Over 1/2 through 1	Over 12.70 through 25.40	0.0050	0.127	0.0070	0.178	0.0140	0.356	0.0070	0.178
Over 1 through 3 1/2	Over 25.40 through 88.90	0.0060	0.152	0.0100	0.254	0.0260	0.660	0.0130	0.330

Drill length series	Applies to drills	Formula	Maximum allowed TIR (in)
Jobbers length	0.03125 in. and larger (smaller: manufacturer's discretion)	0.0001316 x (overall length / drill diameter) + 0.00368	-
Taper length	0.03125 in. and larger (smaller: manufacturer's discretion)	0.000375 x (overall length / drill diameter) + 0.0027	0.02
Screw machine length	0.0400 in. and larger (smaller: manufacturer's discretion)	0.0001316 x (overall length / drill diameter) + 0.00368	0.007

Diameter range (in)	Maximum TIR (in)
.0400-.0624	.020
.0625-.1249	.015
.1250-.2499	.012
.2500-.3749	.010
.3750-.4999	.007
.5000	.005

Element	Size designations	Plus (+) in	Minus (-) in	Plus (+) mm	Minus (-) mm
Body diameter (A)	All sizes	0.0000	0.0020	0.000	0.051
Drill length (C)	00	0.005	0.005	0.13	0.13
Drill length (C)	0 through 2 and 11 and 12	0.008	0.008	0.20	0.20
Drill length (C)	3 through 8 and 13 through 18	1/64	1/64	0.4	0.4
Drill diameter (D)	All sizes	0.0030	0.0000	0.076	0.000
Overall length (L)	All sizes	1/32	1/16	0.8	1.6

A range (in)	A range (mm)	J max (in)	J min (in)	J max (mm)	J min (mm)	K (in)	K (mm)
1/8 through 3/16	3.18 through 4.76	0.094	0.090	2.39	2.29	9/32	7.0
Over 3/16 through 1/4	Over 4.76 through 6.35	0.122	0.118	3.10	3.00	5/16	8.0
Over 1/4 through 5/16	Over 6.35 through 7.94	0.162	0.158	4.11	4.01	11/32	8.5
Over 5/16 through 3/8	Over 7.94 through 9.53	0.203	0.199	5.16	5.06	3/8	9.5
Over 3/8 through 15/32	Over 9.53 through 11.91	0.243	0.239	6.17	6.07	7/16	11.0
Over 15/32 through 9/16	Over 11.91 through 14.29	0.303	0.297	7.70	7.55	1/2	12.5
Over 9/16 through 21/32	Over 14.29 through 16.67	0.373	0.367	9.47	9.32	9/16	14.5
Over 21/32 through 3/4	Over 16.67 through 19.05	0.443	0.437	11.25	11.10	5/8	16.0
Over 3/4 through 7/8	Over 19.05 through 22.23	0.514	0.508	13.05	12.90	11/16	17.5
Over 7/8 through 1	Over 22.23 through 25.40	0.609	0.601	15.47	15.27	3/4	19.0
Over 1 through 1 3/16	Over 25.40 through 30.16	0.700	0.692	17.78	17.58	13/16	20.5
Over 1 3/16 through 1 3/8	Over 30.16 through 34.93	0.817	0.809	20.75	20.55	7/8	22.0

Thickness of tang T (in)	Thickness of tang T (mm)	T.I.V. (in)	T.I.V. (mm)
From 0.090 through 0.243	From 2.29 through 6.17	0.006	0.16
Over 0.243 through 0.443	Over 6.17 through 11.25	0.007	0.18
Over 0.443 through 0.609	Over 11.25 through 15.47	0.008	0.21
Over 0.609 through 0.817	Over 15.47 through 20.75	0.009	0.23

Range (drill diameter, in)	A = 118 deg lip relief	A = 135 deg lip relief	E lip height	W2 web after notching	R max radius in notch	G alignment of secondary cutting edges	C chisel edge centrality
1/16 - #41	20 deg ±3 deg	16 deg ±3 deg	.002 T.I.V.	.002/.005	.005	.002	.002
#40 - 1/8	17 deg ±2 deg	14 deg ±2 deg	.002 T.I.V.	.002/.005	.007	.003	.002
Over 1/8 - 1/4	14 deg ±2 deg	14 deg ±2 deg	.002 T.I.V.	.002/.005	.010	.003	.002
Over 1/4 - 1/2	12 deg ±2 deg	12 deg ±2 deg	.002 T.I.V.	.002/.009	.015	.004	.004
Over 1/2 - 3/4	12 deg ±2 deg	10 deg ±2 deg	.004 T.I.V.	.003/.012	.020	.005	.004
Over 3/4 - 1	11 deg ±2 deg	8 deg ±2 deg	.004 T.I.V.	.005/.020	.025	.007	.004

Table	Printed rows (counted on the pages)	Rows in "Tbl" sheet	Rows in Designations (one per designation / shank option / flute count)
Table 1	319	319	330
Table 2A	183	183	185
Table 2B	120	120	120
Table 3A	296	296	299
Table 3B	30	30	30
Table 5	276	276	380
Table 7	30	30	38
Table 8	61	61	86

Table	Row	What is printed
Table 1	17/32 in	printed mm equivalent 13.494 differs from decimal x 25.4 = 13.492
Table 3A	13/32 in	printed mm equivalent 10.320 differs from decimal x 25.4 = 10.317
Table 3A	5/8 in	printed mm equivalent 15.815 differs from decimal x 25.4 = 15.875
Table 3A	25/32 in	printed mm equivalent 19.845 differs from decimal x 25.4 = 19.842
Table 5	5/8 in	printed mm equivalent 15.815 differs from decimal x 25.4 = 15.875
Table 5	17.50 mm	printed mm equivalent 17.500 differs from decimal x 25.4 = 17.475
Table 5	15/16 in	printed mm equivalent 23.862 differs from decimal x 25.4 = 23.812
Table 5	2 3/16 in	printed mm equivalent 55.512 differs from decimal x 25.4 = 55.562
Table 5	56.00 mm	printed mm equivalent 56.000 differs from decimal x 25.4 = 55.880
Table 7/8	5/16 in	printed decimal 0.3175 differs from 5/16 in = 0.3125
Table 7/8	13/32 in	printed mm equivalent 10.217 differs from computed 10.319
Table 7/8	5/8 in	printed mm equivalent 15.815 differs from computed 15.875
Table 7/8	29/32 in	printed mm equivalent 23.000 differs from computed 23.019
Table 7/8	1 15/32 in	printed decimal 1.4683 differs from 1 15/32 in = 1.4688
Table 7/8	1 15/32 in	printed mm equivalent 37.300 differs from computed 37.306
Table 7/8	1 9/16 in	printed decimal 1.5675 differs from 1 9/16 in = 1.5625
Table 7/8	1 23/32 in	printed decimal 1.8438 differs from 1 23/32 in = 1.7188
Table 7/8	1 23/32 in	printed mm equivalent 43.658 differs from computed 43.656
Table 7/8	1 25/32 in	printed mm equivalent 45.262 differs from computed 45.244
Table 7/8	1 27/32 in	printed decimal 1.0000 differs from 1 27/32 in = 1.8438
Table 7/8	1 27/32 in	printed mm equivalent 46.833 differs from computed 46.831
Table 5	2 1/4 in? row printed "2.2500" in the Shank-smaller table at 3 1/4 in	printed decimal 2.2500 is a typo for 3.2500 (mm equivalent 82.550 agrees with 3.2500)

Table 1	#75	manual Fmm=6.0 (page image)
Table 1	1.10 mm	manual Fmm=19.0 (page image)
Table 1	1.15 mm	manual Fmm=19.0 (page image)
Table 1	#56	manual Fmm=19.0 (page image)
Table 1	3/64 in	manual Fmm=19.0 (page image)
Table 1	1.20 mm	manual Fmm=22.0 (page image)
Table 1	1.25 mm	manual Fmm=22.0 (page image)
Table 1	2.20 mm	manual Fmm=32.0 (page image)
Table 1	2.20 mm	manual Lmm=57.0 (page image)
Table 1	#22	manual Lmm=79.0 (page image)
Table 1	4.20 mm	manual Fmm=54.0 (page image)
Table 1	4.20 mm	manual Lmm=83.0 (page image)
Table 1	4.90 mm	manual Fmm=62.0 (page image)
Table 1	5.00 mm	manual Fmm=62.0 (page image)
Table 1	15/32 in	manual mmeq=11.908 (page image)
Table 1	41/64 in	manual Fmm=132.0 (page image)
Table 1	41/64 in	manual Lmm=181.0 (page image)
Table 1	16.50 mm	manual Fmm=132.0 (page image)
Table 1	16.50 mm	manual Lmm=181.0 (page image)
Table 1	21/32 in	manual Fmm=132.0 (page image)
Table 1	21/32 in	manual Lmm=181.0 (page image)
Table 1	16.75 mm	manual Fmm=143.0 (page image)
Table 1	16.75 mm	manual Lmm=194.0 (page image)
Table 1	43/64 in	manual Fmm=143.0 (page image)
Table 1	43/64 in	manual Lmm=194.0 (page image)
Table 1	17.25 mm	manual Fmm=143.0 (page image)
Table 1	17.25 mm	manual Lmm=194.0 (page image)
Table 1	11/16 in	manual Fmm=143.0 (page image)
Table 1	11/16 in	manual Lmm=194.0 (page image)
Table 1	17.50 mm	manual Fmm=143.0 (page image)
Table 1	17.50 mm	manual Lmm=194.0 (page image)
Table 2A	#57	manual mmeq=1.092 (page image)
Table 2A	#10	manual Fmm=92.0 (page image)
Table 2A	#10	manual Lmm=152.0 (page image)
Table 2A	#9	manual Fmm=92.0 (page image)
Table 2A	#9	manual Lmm=152.0 (page image)
Table 2A	5.10 mm	manual Fmm=92.0 (page image)
Table 2A	5.10 mm	manual Lmm=152.0 (page image)
Table 2A	13/64 in	manual Fmm=92.0 (page image)
Table 2A	13/64 in	manual Lmm=152.0 (page image)
Table 2A	5.60 mm	F: stray digit removed (OCR 956 -> 95; image shows 95)

50.00 mm Screw machine length twist drill, over 1 in. (reduced shank)

Drawing

Dimensions

Tolerances (Table 10)

This diameter in other tables

Data check

Table 3B: Screw machine length twist drill, over 1 in. (reduced shank)

Drill types in the standard

Combined drills and countersinks (Table 9A)

Tolerances, tangs, split points, checks and errata

Tapped-hole drills for common threads

Related tools

About these values