catalog

Carbide Tipped Aircraft Counterbores

850 Series

850 SERIES carbide counterbores are similar in design to the 848 Series high speed steel cutters. They excel in cutting highly abrasive materials, and are recommended for counterboreing and spot-facing the "difficult to machine" and "exotic" materials in which high speed steel will not perform satisfactorily. Also recommended for any application where longer tool life is desired.

Special "D" cutter diameters may be readily ground from standard sizes listed. Special cutters given prompt attention.

All cutters furnished with 1/64 corner radius. Maximum non -cutting diameter is 1/32 larger than the pilot hole. Recommend using pilots with "H" head diameter 1/32 minimum larger than "S" shank diameter. For pilot information see 855 Series.

TOOL NUMBER
"D" CUTTER DIA.
"PH" PILOT HOLE DIA.
"S" SHANK DIA.
O.A.L. OVERALL LENGTH
850-1
1/4
3/32
1/4
2-3/8
850-2
9/32
3/32
1/4
2-3/8
850-3
5/16
3/32
1/4
2-3/8
850-4
11/32
3/32
1/4
2-3/8
850-5
3/8
3/32
1/4
2-3/8
850-6
13/32
1/8
1/4
2-3/4
850-7
7/16
1/8
1/4
2-3/4
850-8
15/32
1/8
1/4
2-3/4
850-9
1/2
1/8
1/4
2-3/4
850-10
17/32
1/8
1/4
2-3/4
850-11
9/16
1/8
1/4
2-3/4
850-12
19/32
1/8
1/4
2-3/4
850-13
5/8
1/8
1/4
2-3/4
850-14
21/32
3/16
1/4
2-3/4
850-15
11/16
3/16
1/4
2-3/4
850-16
23/32
3/16
1/4
2-3/4
850-17
3/4
3/16
1/4
2-3/4
850-18
25/32
3/16
1/4
2-3/4
850-19
13/16
3/16
1/4
2-3/4
850-20
27/32
3/16
1/4
2-3/4
850-21
7/8
3/16
1/4
2-3/4
850-22
29/32
3/16
1/4
2-3/4
850-23
15/16
3/16
1/4
2-3/4
850-24
31/32
3/16
1/4
2-3/4
850-25
1
3/16
1/4
2-3/4
850-26
1-1/16
3/16
3/8
2-3/4
850-27
1-1/8
3/16
3/8
2-3/4
850-28
1-3/16
3/16
3/8
2-3/4
850-29
1-1/4
1/4
3/8
2-3/4
850-30
1-5/16
1/4
3/8
2-3/4
850-31
1-3/8
1/4
3/8
2-3/4
850-31B
1-7/16
1/4
3/8
2-3/4
850-32
1-1/2
1/4
3/8
2-3/4
850-33
1-9/16
5/16
1/2
3-1/16
850-34
1-5/8
5/16
1/2
3-1/16
850-35
1-11/16
5/16
1/2
3-1/16
850-36
1-3/4
5/16
1/2
3-1/16
850-37
1-13/16
5/16
1/2
3-1/16
850-38
1-7/8
5/16
1/2
3-1/16
850-39
1-15/16
5/16
1/2
3-1/16
850-40
2
5/16
1/2
3-1/16

Please complete the information below and click "submit" to send Special Order Countersinks or to upload your prints. If you have any questions contact one of our sales representatives at 310-322-0614

© All Rights Reserved CRAIG TOOLS INC