®
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 stainless steels. 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 fine grain size with high hardness and toughness combined with triple layer reddish coating, provides high edge stability and better chip flow. Available only for CBR bars. Cutting speed for Tiny Tools
ISO Stan- dard
Cutting Speed m/min
Condition
Material
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 P
Quenched and tempered
25 - 70
30 - 80
36 - 80
Annealed
Quenched and tempered
Annealed
Low alloy steel and cast steel (less than %5 alloying elements) High alloy steel, cast steel, and tool steel Stainless steel and cast steel M
20 - 40
25 - 50
30 - 50
Quenched and tempered
Annealed
20 - 40
25 - 50
30 - 50
Quenched and tempered Ferritic/martensitic
Martensitic Austenitic
25 - 40
30 - 60
36 - 60
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 Cured High temperature Free cutting Brass Electrolytic copper
Aluminum- cast, alloyed
40 - 80
50 - 90
20 - 40
60 - 90
N
>%12 Si >%1 Pb
Copper alloys
30 - 60
30 - 70
20 - 40
36 - 70
Duroplastics, fiber plastics
Non metalic
40 - 80
20 - 40
Hard rubber Annealed Cured Annealed
Fe based
High temp. alloys, Super alloys S
15 - 30
15 - 40
18 - 40
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
H
Hardened steel
10 - 30
14 - 40
18 - 40
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 A06-45
A06-43
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