Tiny Tools
Technical Section Carbide Grades: BXC (P30 - P50, K25 - K40)
PVD TiN coated grade for low cutting speed. Works well with a wide range of materials. BMK (K10 - K20) Sub-micron grade with advanced PVD triple coating. Extremely high heat resistant and smooth cutting operation, for high performance, and normal machining conditions. General purpose for all materials. K20 (K10 - K30) Uncoated Carbide grade for non ferrous metals, aluminum and cast iron. TNX New advanced carbide grade TN X for higher feeds and high performance, at medium to high cutting speed. Extra ne grain size with high hardness and toughness combined with triple layer reddish coating, provides high edge stability and better chip ow. Cutting speed for Tiny Tools
Cutting Speed m/min
ISO Standard
Material
Condition
BXC
BMK
K20
TN X
<%0.25C ≥%0.25C < %0.55C ≥%0.55C ≥%0.55C
Annealed Annealed
Non-Alloy steel and cast steel, free cutting steel
Quenched and tempered
25 - 70
30 - 80
36 - 80
Annealed
P
Quenched and tempered
Annealed
Low alloy steel and cast steel (less than %5 alloying elements) High alloy steel, cast steel, and tool steel
20 - 40
25 - 50
30 - 50
Quenched and tempered
Annealed
20 - 40
25 - 50
30 - 50
Quenched and tempered
Ferritic/martensitic
M
Stainless steel and cast steel
25 - 40
30 - 60
36 - 60
Martensitic Austenitic
Ferritic/pearlitic
Cast iron nodular (GGG)
25 - 60
30 - 80
36 - 80
Pearlitic Ferritic Pearlitic Ferritic Pearlitic
K
Grey cast iron (GG)
30 - 70
30 - 80
36 - 80
Malleable cast iron
20 - 40
20 - 50
24 - 50
Not cureable
Aluminum-wrought alloy
50- 100
60 - 120
30 - 50
72 - 120
Cured
≤%12 Si
Not cureable
Aluminum- cast, alloyed
Cured High temperature
40 - 80
50 - 90
20 - 40
60 - 90
>%12 Si >%1 Pb
N
Free cutting
Copper alloys
Brass Electrolytic copper
30 - 60
30 - 70
20 - 40
36 - 70
Duroplastics, ber plastics
Non metalic
40 - 80
20 - 40
Hard rubber
Annealed Cured Annealed
Fe based
High temp.alloys, Super alloys
15 - 30
15 - 40
18 - 40
S
Ni or Co based Cured Cast
Titanium, Titanium alloys
Alpha+beta alloys cured Hardened 45-50 HRc Hardened 51-55 HRc Hardened 56-62 HRc
10 - 30
10 - 30
12 - 30
Hardened steel
10 - 30
14 - 40
18 - 40
H
Chilled cast iron
Cast
10 - 30 10 - 20
10 - 30 10 - 20
12 - 30 12 - 20
Cast iron
Hardened
Recommended Feed Rate: 0.01 - 0.03 mm/rev For CMR Tiny Tools see page 54
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