
HY-PRO® CARB
Performance Carbide Drills
List HP243 (Continued) SPEED
FEED
P312
CARBIDE
WD1 30˚
3D
Cutting Diameter Tolerance (m7)
Size mm inch
1≤D≤3 +0.002 / +0.012 +0.0001 / +0.0005
140° 3<D≤6 +0.004 / +0.016 +0.0002 / +0.0006
ØD
Ød
6<D≤10 +0.006 / +0.021 +0.0002 / +0.0008
10<D≤18 +0.007 / +0.025 +0.0003 / +0.0010
FL 18<D≤20 +0.008 / +0.029 +0.0003 / +0.0011
R Thinning L
Flute Overall Shank
Diameter
EDP Length Length Diameter
Number Fractional Wire Gage Letter Size mm Inch FL L d
Size
HP243-3280 21/64 - - 8.33 0.3280
HP243-3307 - - - 8.40 0.3307
HP243-3319 - - Q 8.43 0.3319
HP243-3346 - - - 8.50 0.3346
HP243-3386 - - - 8.60 0.3386
HP243-3425 - - - 8.70 0.3425
HP243-3437 11/32 - - 8.73 0.3437
HP243-3465 - - - 8.80 0.3465
HP243-3504 - - - 8.90 0.3504
HP243-3543 - - - 9.00 0.3543
HP243-3583 - - - 9.10 0.3583
HP243-3594 23/64 - - 9.13 0.3594
47 89 10
HP243-3622 - - - 9.20 0.3622
HP243-3642 - - - 9.25 0.3642
HP243-3661 - - - 9.30 0.3661
HP243-3701 - - - 9.40 0.3701
HP243-3740 - - - 9.50 0.3740
HP243-3748 3/8 - - 9.52 0.3748
HP243-3780 - - - 9.60 0.3780
HP243-3819 - - - 9.70 0.3819
HP243-3858 - - W 9.80 0.3858
HP243-3898 - - - 9.90 0.3898
HP243-3906 25/64 - - 9.92 0.3906
HP243-3937 - - - 10.00 0.3937
HP243-3976 - - - 10.10 0.3976
HP243-4016 - - - 10.20 0.4016
HP243-4055 - - - 10.30 0.4055
HP243-4063 13/32 - - 10.32 0.4063
HP243-4094 - - - 10.40 0.4094
HP243-4134 - - - 10.50 0.4134
HP243-4173 - - - 10.60 0.4173
HP243-4213 - - - 10.70 0.4213
HP243-4220 27/64 - - 10.72 0.4220
HP243-4252 - - - 10.80 0.4252
HP243-4291 - - - 10.90 0.4291
HP243-4331 - - - 11.00 0.4331
HP243-4370 - - - 11.10 0.4370 55 102 12
HP243-4374 7/16 - - 11.11 0.4374
HP243-4409 - - - 11.20 0.4409
HP243-4449 - - - 11.30 0.4449
HP243-4488 - - - 11.40 0.4488
HP243-4528 - - - 11.50 0.4528
HP243-4531 29/64 - - 11.51 0.4531
HP243-4567 - - - 11.60 0.4567
HP243-4606 - - - 11.70 0.4606
HP243-4646 - - - 11.80 0.4646
HP243-4685 - - - 11.90 0.4685
HP243-4689 15/32 - - 11.91 0.4689
HP243-4724 - - - 12.00 0.4724
Packed: 1 pc.
Available WD1 coating only.
178 HY-PRO® CARB WWW.OSGTOOL.COM