MT21505 High-speed steel HSS Co5 DIN 371, DIN 376
Tool geometry
Chamfer
Angle of thread
Lead of screw thread
Thread standard
ISO Metric coarse thread
Material HSS Co5
Steamtempered (Black finish)
D
6 H
P d l1 l2 d1 Z a Item code On stock
M2 0,4 2,8 45 6 1,6 3 2,1 MT21505.020 Yes
M2,5 0,45 2,8 50 7,5 2,05 3 2,1 MT21505.025 Yes
M3 0,5 3,5 56 5 2,5 3 2,7 MT21505.030 Yes
M4 0,7 4,5 63 7 3,3 3 3,4 MT21505.040 Yes
M5 0,8 6 70 8 4,2 3 4,9 MT21505.050 Yes
M6 1 6 80 10 5 3 4,9 MT21505.060 Yes
M8 1,25 8 90 13 6,8 3 6,2 MT21505.080 Yes
M10 1,5 10 100 15 8,5 3 8 MT21505.100 Yes
M12 1,75 9 110 18 10,2 3 7 MT21505.120 Yes
M14 2 11 110 20 12 3 9 MT21505.140 Yes
M16 2 12 110 20 14 3 9 MT21505.160 No
M18 2,5 14 125 25 15,5 4 11 MT21505.180 Yes
M20 2,5 16 140 25 17,5 4 12 MT21505.200 Yes

Cutting conditions


Material

Strenght

vc
P.1 | Free-cutting steels, general construction steels ≤ 600 N/mm² 10-15
P.2 | General construction steels, steel castings ≤ 850 N/mm² 10-15
N.1 | Aluminium, Aluminium cast alloys Si (Si ≤ 6%) ≤ 400 N/mm² 10-15
N.2 | Aluminium cast alloys Si (Si ≤ 12%) ≤ 600 N/mm² 10-15
N.3 | Aluminium cast alloys Si (Si > 12%) ≤ 800 N/mm² 10-15

Calculations of cutting conditions

Product attributes

Tool geometry

Tool geometry

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Helix angle = 40°.
Angle of thread

Angle of thread

Thread standard

Thread standard

Material HSS Co5

Material HSS Co5

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Very high performance high speed steel with good toughness for milling cutters and for milling of materials up to the strength of 1200 MPa.
Chamfer

Chamfer

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For straight or spiral flutes, for short chipping materials.
Lead of screw thread

Lead of screw thread

ISO Metric coarse thread

ISO Metric coarse thread

Steamtempered (Black finish)

Steamtempered (Black finish)

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Steamtempered (Black finish) is a process where a layer of iron oxide is formed on the surface of the tool. This layer increases the abrasion resistance of the blade, increases corrosion resistance and improves lubrication of the tool. The most effective use is for drill bits and taps.