B 358
Technical information – Drilling
Material group
Drilling depth 3 x Dc
Designation K3164TIN A3265TFL
A3865TFL
Type Alpha® 2 Alpha® 2
Dimensions Walter standard DIN 6537 K
Dia. range (mm) 3,30 – 14,50 3,00 – 20,00
Cutting tool material K30F K30F
Coating TiN TFL
Page ¤B 139¤ ¤B 61¤/¤B 98¤
Grouping of main material groups
and identification letters
Brinell hardness HB
Tensile strength Rm
N/mm2
Machining group 1
Workpiece material
vcVRR vcVRR
P
Non-alloyed steel
C ≤ 0.25 % annealed 125 428 P1 95 12 E O M L 100 12 E O M L
C > 0.25... ≤ 0.55 % annealed 190 639 P2 90 12 E O M L 95 12 E O M L
C > 0.25... ≤ 0.55 % tempered 210 708 P3 85 12 E O M L 90 12 E O M L
C > 0.55 % annealed 190 639 P4 90 12 E O M L 95 12 E O M L
C > 0.55 % tempered 300 1013 P5 63 9 E O M L 67 9 E O M L
machining steel (short-chipping) annealed 220 745 P6 95 12 E O M L 100 12 E O M L
Low alloy steel
annealed 175 591 P7 90 12 E O M L 95 12 E O M L
tempered 300 1013 P8 63 9 E O M L 67 9 E O M L
tempered 380 1282 P9 40 6 O E 45 6 O E
tempered 430 1477 P10 32 4 O E 34 4 O E
High-alloyed steel and
high-alloyed tool steel
annealed 200 675 P11 56 9 E O 60 9 E O
hardened and tempered 300 1013 P12 48 7 E O 53 7 E O
hardened and tempered 400 1361 P13 32 4 O E 34 4 O E
Stainless steel ferritic/martensitic, annealed 200 675 P14 56 9 E O 60 9 E O
martensitic, tempered 330 1114 P15 40 6 E O 42 6 E O
MStainless steel
austenitic, quench hardened 200 675 M1
austenitic, precipitation hardened (PH) 300 1013 M2 42 5 E O 45 5 E O
austenitic/ferritic, duplex 230 778 M3
K
Malleable cast iron ferritic 200 675 K1 80 16 E O M L 85 16 E O M L
pearlitic 260 867 K2 63 16 E O M L 67 16 E O M L
grey cast iron low tensile strength 180 602 K3 95 16 E O M L 100 16 E O M L
high tensile strength/austenitic 245 825 K4 80 16 E O M L 85 16 E O M L
Cast iron with spheroidal graphite ferritic 155 518 K5 80 16 E O M L 85 16 E O M L
pearlitic 265 885 K6 63 16 E O M L 67 16 E O M L
GGV (CGI) 200 675 K7 71 16 E O M L 75 16 E O M L
N
Aluminium wrought alloys cannot be hardened 30 – N1 250 10 E O
hardenable, hardened 100 343 N2 250 10 E O
Cast aluminium alloys
≤ 12 % Si, not precipitation hardenable 75 260 N3 200 16 E O 220 16 E O
≤ 12 % Si, precipitation hardenable, precipitation hardened 90 314 N4 180 16 E O 200 16 E O
> 12 % Si, not precipitation hardenable 130 447 N5 140 12 E O 160 12 E O
Magnesium alloys 70 250 N6
Copper and copper alloys
(bronze/brass)
non-alloyed, electrolytic copper 100 343 N7 180 7 E O M 190 7 E O M
brass, bronze, red brass 90 314 N8 150 12 E O 160 12 E O
Cu-alloys, short-chipping 110 382 N9 160 16 E O M L 180 16 E O M L
high-strength, Ampco 300 1013 N10 63 9 E O M L 67 9 E O M L
S
Heat-resistant alloys
Fe-based annealed 200 675 S1
hardened 280 943 S2
Ni or Co base
annealed 250 839 S3
hardened 350 1177 S4
cast 320 1076 S5
Titanium alloys
pure titanium 200 675 S6 36 5 O E 40 5 O E
α and β alloys, hardened 375 1262 S7 30 4 O E 34 4 O E
β alloys 410 1396 S8
Tungsten alloys 300 1013 S9 63 9 E O 67 9 E O
Molybdenum alloys 300 1013 S10 63 9 E O 67 9 E O
HHardened steel
hardened and tempered 50 HRC – H1 24 3 O E 26 3 O E
hardened and tempered 55 HRC – H2 20 3 O E 22 3 O E
hardened and tempered 60 HRC – H3
Hardened cast iron hardened and tempered 55 HRC – H4 20 3 O E 22 3 O E
O
Thermoplasts without abrasive fillers O1 90 16 E O
Thermosetting plastics without abrasive fillers O2
Plastic, glass-fibre reinforced GFRP O3
Plastic, carbon fibre reinforced CFRP O4
Plastic, aramide fibre reinforced AFRP O5
Graphite (technical)
80 Shore
O6
1 The machining groups are assigned from page H¤ 8¤ onwards.
Cutting data for solid carbide drills without internal cooling
E = emulsion
O = oil
M = MQL
L = dry
= cutting data for wet machining
= dry machining is possible, cutting data must be selected from TEC
vC = cutting speed
VCRR = vc rating chart from page ¤B 382¤
VRR = feed rating chart from page ¤B 384¤
