This drill / countersink combination tool is available with 2 drill options:
Wafer Drill (WCDR)  or  Full-Nib Drill (FCDR)

WCDR (inches)

PART-OPTION Example:
FULL-NIB   Drill-Countersink with CD of 0.25" :
TOOL # FCDR-2500

PARTDIAMETER
Ø C.D.+0.001
SHANK
Ød
DIAMETER C.D2.ANGLE Deg.
WAFERfrom 0.125
to 0.2500
3/83/8100.0
WAFERfrom 0.2540
to 0.3750
1/21/2100.0
WAFERfrom 0.3800
to 0.500
1/23/4100.0

FCDR (inches)

PART-OPTION Example:
WAFER   Drill-Countersink with CD of 0.25" :
TOOL # WCDR-2500

PARTDIAMETER
Ø C.D.+0.001
SHANK
Ød
DIAMETER C.D2.ANGLE Deg.
FULL-NIBfrom 0.0980
to 0.2500
3/83/8100.0
FULL-NIBfrom 0.2540
to 0.3125
1/21/2100.0
FULL-NIBfrom 0.3130
to 0.3450
1/23/4100.0

**Additional dimensions & options available on request.