Hartlauer Bits

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USAGE: Hard Plastic, Solid Surface & Aluminum

This solid carbide tool is a great all-purpose cutter. It will give a good finish in a variety of materials. These tools are designed to have a longer life when compared with high speed steel (HSS). Solid carbide has a harder edge that holds up well against friction, however these tools are more brittle and may break if dropped or abused. For longer tool life try the TiN coating (pictured right).

Onsrud 52-000 series - 2 Edge Upcut Spiral - Solid Carbide

Part Number
Cutting Dia
Cutting Lgth
Shank Dia
OAL
Mfg List Price
52-044h
1/8
5/16
1/4
2
26.00
52-044TiN
1/8
5/16
1/4
2
28.50
52-040
1/8
1/2
1/4
2
28.00
52-040TiN
1/8
1/2
1/4
2
30.25
52-141h
1/8
5/8
1/4
2
35.75
52-142h
1/8
3/4
1/4
2 1/2
38.75
52-554*
1/8
1 1/16
1/4
2 1/2
50.50
52-050
5/32
9/16
1/4
2
30.00
52-050TiN
5/32
9/16
1/4
2
30.25
52-060
3/16
5/8
1/4
2
28.00
52-060TiN
3/16
5/8
1/4
2
30.25
52-558
3/16
1 1/8 
3/16
2 1/2
50.50
52-160h
3/16
1 1/8
1/4
2 1/2
41.50
52-560*
3/16
1 5/8
3/16
3
54.75
52-088h
1/4
1/2
1/4
2
27.50
52-088TiN
1/4 
1/2
1/4
2
29.75
52-080
1/4
3/4
1/4
2 1/2
28.00
52-080TiN
1/4
3/4
1/4
2 1/2
30.25
52-180h
1/4
1 1/4
1/4
2 1/2
37.50
52-181h
1/4
1 3/8
1/4
3
40.00
52-281h*
1/4
1 3/4
1/4
3 1/2
59.00
52-564*
1/4
2 1/4
1/4
4
56.25
52-090
9/32
3/4
3/8
2 1/2
46.50
52-570*
5/16
3 1/8
5/16
6
65.00
52-574*
3/8
3 1/2
3/8
6
72.25
52-120
1/2
7/8
1/2
2 1/2
47.75
52-160O
1/2
1
1/2
3
79.75

* Extreme lengths are not recommended for anything other than foam

Bosch 85000M series - 2 Edge Upcut Spiral - Solid Carbide

Part Number
Cutting Dia
Cutting Lgth
Shank Dia
OAL
Mfg List Price
85910M
1/4
3/4
1/4
2
23.25

Onsrud 57-000 series - 2 Edge Downcut Spiral - Solid Carbide

Part Number
Cutting Dia
Cutting Lgth
Shank Dia
OAL
Mfg List Price
57-040
1/8
1/2
1/4
2
27.25
57-060
3/16
5/8
1/4
2
27.25
57-080
1/4
3/4
1/4
2 1/2
27.25

Tip: Try using a straight flute before using a downcut

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