191 SERIES carbide reverse spotfacers are similar in design to the 190 series high speed steel cutters. They excel in cutting highly abrasive materials, the "difficult to machine" materials, and in cutting any material where longer tool life is desired. 186 Series step pilots are recommended for use with carbide tipped cutters as tipped cutters have a maximum non-cutting diameter 1/32 larger than pilot hole, see sketch. All carbide cutters are supplied with 1/64 corner radius. Special sizes subject to quotation.

 

TOOL NUMBER
"D" CUTTER DIA.
"PH" PILOT HOLE
CONSTRUCTION
PILOT REF. *
PLAIN PILOT
STEP PILOT
191-1J
1/4
3/32
Solid Carbide
185-1
186-1
191-1K
1/4
1/8
Solid Carbide
185-2
186-2
191-2J
5/16
3/32
Solid Carbide
185-1
186-1
191-2K
5/16
1/8
Solid Carbide
185-2
186-2
191-2L
5/16
5/32
Solid Carbide
185-3
186-3
191-3J
3/8
1/8
Solid Carbide
185-2
186-2
191-3K
3/8
5/32
Solid Carbide
185-3
186-3
191-3L
3/8
3/16
Solid Carbide
185-4
186-4
191-4J
7/16
1/8
Solid Carbide
185-2
186-2
191-4K
7/16
5/32
Solid Carbide
185-3
186-3
191-4L
7/16
3/16
Solid Carbide
185-4
186-4
191-5J
1/2
5/32
Solid Carbide
185-3
186-3
191-5K
1/2
3/16
Solid Carbide
185-4
186-4
191-5L
1/2
1/4
Solid Carbide
185-5
186-5
191-6J
9/16
5/32
Solid Carbide
185-9
186-6
191-6K
9/16
3/16
Solid Carbide
185-4
186-7
191-6L
9/16
1/4
Solid Carbide
185-5
186-8
191-7J
5/8
3/16
Solid Carbide
185-4
186-7
191-7K
5/8
1/4
Solid Carbide
185-5
186-8
191-7L
5/8
5/16
Solid Carbide
185-6
186-9
191-8J
11/16
3/16
Solid Carbide
185-4
186-7
191-8K
11/16
1/4
Solid Carbide
185-5
186-8
191-8L
11/16
5/16
Solid Carbide
185-6
186-9
191-9J
3/4
1/4
Solid Carbide
185-5
186-8
191-9K
3/4
5/16
Solid Carbide
185-6
186-9
191-9L
3/4
3/8
Solid Carbide
185-7
186-10
191-10J
7/8
1/4
Solid Carbide
185-5
186-8
191-10K
7/8
5/16
Solid Carbide
185-6
186-9
191-10L
7/8
3/8
Solid Carbide
185-7
186-10
191-11J
1
5/16
Solid Carbide
185-6
186-9
191-11K
1
3/8
Solid Carbide
185-7
186-10
191-11L
1
1/2
Solid Carbide
185-8
186-11
191-11M
1 - 1/8
3/8
Carbide Tipped
186-16
191-11N
1 - 1/8
1/2
Carbide Tipped
186-17
191-12J
1 - 1/4
3/8
Carbide Tipped
186-16
191-12K
1 - 1/4
1/2
Carbide Tipped
186-17
191-13J†
1 - 3/8
5/8
Carbide Tipped
186-20,21
191-14J†
1 - 1/2
5/8
Carbide Tipped
186-20,21
191-15J†
1 - 5/8
3/4
Carbide Tipped
186-22,23,24
191-16J†
1 - 3/4
3/4
Carbide Tipped
186-22,23,24
191-17J†
1 - 7/8
3/4
Carbide Tipped
186-22,23,24
191-18J†
2
3/4
Carbide Tipped
186-22,23,24

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