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C E N T E R I N G
American Standard
00000 1/8 .010 1-1/4 .008 - .018 1055005 * 091055005 *
0000 1/8 .015 1-1/4 .014 - .025 1055004 * 091055004 *
000 1/8 .020 1-1/4 .020 - .032 1150001 08115001 1055001 * 091055001 *
00 1/8 .025 1-1/4 .028 - .040 1150002 08115002 1055002 * 091055002 *
0 1/8 1/32 1-1/4 .035 - .047 1150003 08115003 1055003 * 091055003 *
1 1/8 3/64 1-1/4 .055 - .067 1150100 08115010 1055010 091055010
2 3/16 5/64 1-7/8 .095 - .106 1150200 08115020 1055020 091055020
3 1/4 7/64 2 .130 -. 154 1150300 08115030 1055030 091055030
4 5/16 1/8 2-1/8 .150 - .175 1150400 08115040 1055040 091055040
4-1/2 3/8 9/64 2-1/2 .170 - .193 1150450 08115045
5 7/16 3/16 2-3/4 .230 - .256 1150500 08115050 1055050 091055050
6 1/2 7/32 3 .270 - .295 1150600 08115060 1055060 091055060
7 5/8 1/4 3-1/4 .315 - .340 1150700 08115070 1055070 091055070
8 3/4 5/16 3-1/2 .390 - .420 1150800 08115080 1055080 091055080
9 7/8 11/32 3-5/8 .430 - .460 1150900 08115090
10 1 3/8 3-3/4 .475 - .500 1151000 08115100
ASA # D d L l
magafor TIN magafor futura 115 08115 1055 091055
Tool (^) D d Angle Diameters (^) 60° 118° .010 - 7/64 - .0006 +. 1/8 - 7/32 - .0007 +. 1/4 - 3/8 - .0009 + .0059 - 30' ± 2° 7/16 - 5/8 - .0011 +. 3/4 - 1 - .0013 +. Tolerances
* Single end tool
PLAIN TYPE
60° CENTER DRILLS
Sizes in inches
HSS M2 HSS-E 8% COBALT M
D
d
L
l
15 °^ P
The magafor center drills are particularly effective thanks to their unique ground spiral flutes.
C E N T E R I N G
ASA # D d L l
� magafor �� magafor
154 155
American Standard Angle (^) 82° 90°
82° - 90° Angles
HSS M
British Standard American Standard
SET OF 5 DRILLS / L = 4"
COMPOSITION magafor (^185)
# 1 - 2 - 3 - 4 - 5 1 piece of each
BS # D d L l
magafor
Longs
HSS M HSS M
ASA # D d L
magafor
185 1 x 3" 1 x 4" 1 x 5" 1 x 6" 2 x 3" 2 x 4" 2 x 5" 2 x 6" 3 x 3" 3 x 4" 3 x 5" 3 x 6" 4 x 3" 4 x 4" 4 x 5" 4 x 6" 4-1/2 x 4" 4-1/2 x 5" 4-1/2 x 6" 5 x 4" 5 x 5" 5 x 6" 6 x 4" 6 x 5" 6 x 6" 7 x 5" 7 x 6" 8 x 6"
C E N T E R I N G
ISO • NFE 66051-A • DIN 333-A • JIS-
3,15 x 0,5 * 25 0,6 - 0,9 • • • 3,15 x 0,8 * 25 1,0 - 1,3 • • • 3,15 x 1,0 31 1,3 - 1,7 • • • • • • 3,15 x 1,25 31 1,6 - 2,0 • • • • • • 3,5 x 0,75 35 1,0 - 1,3 • 4,0 x 1,0 35 1,3 - 1,7 • • • • 4,0 x 1,6 35 2,0 - 2,6 • • • • • • 5,0 x 1,5 40 2,0 - 2,6 • • • • 5,0 x 2,0 40 2,5 - 3,1 • • • • • • 6,0 x 2,0 45 2,5 - 3,1 • • • • 6,3 x 2,5 45 3,1 - 3,8 • • • • • • 8,0 x 2,5 50 3,1 - 3,8 • • • • 8,0 x 3,0 50 3,9 - 4,6 • • • • 8,0 x 3,15 50 3,9 - 4,6 • • • • • • 10,0 x 3,0 55 3,9 - 4,6 • • • • 10,0 x 4,0 55 5,0 - 5,9 • • • • • • 12,0 x 4,0 63 5,0 - 5,9 • • 12,0 x 5,0 63 6,3 - 7,2 • • • • 12,5 x 5,0 63 6,3 - 7,2 • • • • • • 14,0 x 5,0 69 6,3 - 7,2 • 16,0 x 6,3 71 8,0 - 8,9 • • • 20,0 x 8,0 80 10,1 - 11,1 •
D x d L l
magafor TIN magafor futura magaforce Hard'X
10 0811 105 0910 8100 8100-H
COMPOSITION magafor
Quantity 115/
1
3 pieces # 2 each # 3
4
2 pieces # 4-1/ 1 piece # 5
COMPOSITION magafor
Quantity 115/
1
2
1 piece # 3 each # 4
5
Performances
HSS-E COBALT M35 HSS-E 8% COBALT M42 K
CARBIDE
All in one!
NOTE : all metric center drills are available within 1-2 weeks. Call for information.
SETS
American Standard 15 PIECES 5 PIECES
1 - W 1/8 3/64 1-1/4 .055 - .067 1450100
2 - W 3/16 5/64 1-7/8 .095 - .106 1450200
3 - W 1/4 7/64 2 .130 - .154 1450300
4 - W 5/16 1/8 2-1/8 .150 - .175 1450400
5 - W 7/16 3/16 2-3/4 .230 - .256 1450500
6 - W 1/2 7/32 3 .270 - .295 1450600
7 - W 5/8 1/4 3-1/4 .315 - .340 1450700
8 - W 3/4 5/16 3-1/2 .390 - 420 1450800
ASA # D d L l
� magafor
145
C E N T E R I N G
D
d
L
l
The magafor center drill form W is stronger than common center drill :
- the bulge reinforces the point,
- it increases the chips removal,
- it makes the lubrication of the drill easier.
magafor
"UNIQUE"
CENTER DRILLS
With reinforcing bulge
Form W
PLAIN TYPE WITH BULGE American Standard
HSS M
Tool (^) D d Angle Diameters (^) 60° 118° .010 - 7/64 - .0006 +. 1/8 - 7/32 - .0007 +. 1/4 - 3/8 - .0009 + .0059 - 30' ± 2° 7/16 - 5/8 - .0011 +. 3/4 - 1 - .0013 +. Tolerances
BULGE
C E N T E R I N G
D
d
L
R
α
l
15 °^ P
D
d
L
R
α
l
15 °^ P
D
d
L
R
α
l
15 °^ P
D
d
L
R
α
l
15 °^ P
RADIUS TYPE
CENTER DRILLS
Form R
American Standard
HSS M
magafor center drill with radius, thanks to its special profile, is more robust than the 60° center drill :
- the radius eliminates the risk of breakage,
- it provides an exact bearing,
- it serves as a protective chamfer.
Tool (^) D d R Diameters (^) max .010 - 7/64 - 0.0006 +. 1/8 - 7/32 - 0.0007 +. 1/4 - 3/8 - 0.0009 + .0059 1,25 R 7/16 - 5/8 - 0.0011 +. 3/4 - 1 - 0.0013" +. Tolerances
MODUL-R Center drills with flat for the combination of centering-facing. Pages 14-
1 - R 1/8 3/64 1-1/4 .150 .125 - .150 1250100
2 - R 3/16 5/64 1-7/8 .230 .200 - .225 1250200
3 - R 1/4 7/64 2 .315 .270 - .300 1250300
4 - R 5/16 1/8 2-1/8 .400 .340 - .370 1250400
5 - R 7/16 3/16 2-3/4 .500 .480 - .510 1250500
6 - R 1/2 7/32 3 .530 .540 - .575 1250600
7 - R 5/8 1/4 3-1/4 .700 .660 - .700 1250700
8 - R 3/4 5/16 3-1/2 .790 .810 - .850 1250800
ASA # D d L R l
� magafor �
125
British Standard
HSS M
1 - R 1/8 3/64 1-1/2 .125 .125 - .145 •
2 - R 3/16 1/16 1-3/4 .200 .185 - .205 •
3 - R 1/4 3/32 2 .250 .245 - .270 •
4 - R 5/16 1/8 2-1/8 .315 .310 - .335 •
5 - R 7/16 3/16 2-3/4 .400 .430 - .470 •
BS # D d L R l
� magafor �
124
C O M B I N E D
M A C H I N I N G
Center drills for threaded spindles are designed to do the following in a single operation :
- make the preliminary tap hole, - make the tap entrance, - do the centering. Main use : to center or to bore the shafts of electric motors, pumps, speed-reducing gear.
The drills 0280 and 0288 have also the following :
- a flat area for carbide insert, - two grooves for oil. For use with modul-R
d
d
L
d l^1
l^2^ l
d1 d2 d3 L Angles 60° 90° h8 + 0,1 h7 ±1 -30' ±1°
Tolerances
METRIC
CENTER DRILLS
for threaded holes
Ø
d1 d2 d3 L l 1 l 2 l 3
magafor P magafor
SCREW (^0285) - 0,1 0280
DIN 332/2 • FORM D Without flat
With flat
M3 2,5 3,2 6,0 55 18 9,0 8 •
M4 3,3 4,3 8,0 63 23 12,6 11 • 6,75 •
M5 4,2 5,3 10,0 67 27 15,1 13 • 8,45 •
M6 5,0 6,4 12,5 71 33 18,9 16 • 10,45 •
M8 6,8 8,4 14,0 88 41 23,0 19 • 12,50 •
M10 8,5 10,5 16,0 90 47 27,7 23 • 14,85 •
M12 10,2 13,0 20,0 105 59 34,5 28 • 18,45 •
M16 14,0 17,0 25,0 132 67 41,3 33 23,40 •
M20 17,5 21,0 31,5 145 77 48,3 38 29,35 •
M24 21,0 25,0 40,0 160 90 57,0 45 36,50 •
15 °^ P
60° Angle
HSS-E COBALT M
Ø
d1 d2 d3 L l 1 l 2 l 3 R*^
magafor P magafor
SCREW (^0287) - 0,1 0288
DIN 332/2 • FORM DR Without flat
With flat 15 °^ P
M4 3,3 4,3 8,0 63 23 12,6 11 4 • 6,75 •
M5 4,2 5,3 10,0 67 27 15,1 13 6 • 8,45 •
M6 5,0 6,4 12,5 71 33 18,9 16 8 • 10,45 •
M8 6,8 8,4 14,0 88 41 23,0 19 10 • 12,50 •
M10 8,5 10,5 16,0 90 47 27,7 23 14 • 14,85 •
M12 10,2 13,0 20,0 105 59 34,5 28 16 • 18,45 •
* R max = 1,25 R
R
WITH RADIUS
HSS-E COBALT M
MODUL-R Center drills with flat for the combination of centering-facing. Pages 14-
NOTE : all metric center drills are available within 1-2 weeks. Call for information.
