Countersinking operations in aerospace structures place unique demands on cutting tools. Countersinking operations in aerospace structures place unique demands on cutting tools.

Diamond Electroplated Pilot Countersinks

Diamond electroplated pilot countersinks support precision chamfering in brittle, abrasive, and fiber-reinforced substrates such as CFRP, GFRP, ceramics, and borosilicate glass. The electroplated diamond layer maintains edge sharpness during high-speed countersinking and generates clean chamfer geometry with minimal fraying, peel-up, or micro-chipping. Pilot guidance stabilizes the cutter during entry and ensures concentricity between the pilot hole and countersink, reducing misalignment during multi-step drilling operations.

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Specifications

ITEM#

0225321

0225322

0225323

0225324

0225325

0225326

0225327

0225328

02253291

02253292

02253293

02253294

02253295

D

0.500

0.500

0.500

0.500

0.500

0.500

0.500

0.500

0.500

0.500

0.500

0.500

0.500

L

1.075

1.075

1.075

1.075

1.075

1.075

1.075

1.075

1.075

1.075

1.075

1.075

1.075

A

100°

100°

100°

100°

100°

100°

120°

100°

100°

100°

100°

135°

130°

S

0.250-28

0.250-28

0.250-28

0.250-28

0.250-28

0.250-28

0.250-28

0.250-28

0.250-28

0.250-28

0.250-28

0.250-28

0.250-28

P

0.155

0.125

0.125

0.166

0.166

0.176

0.160

0.175

0.203

0.193

0.193

0.193

0.186

P1

0.250

0.170

0.250

0.250

0.250

0.250

0.180

0.250

0.230

0.200

0.200

0.300

0.235

F

0.060

0.060

0.060

0.060

0.060

0.060

0.060

0.060

0.060

0.060

0.060

0.060

0.060

GRIT

080/100

080/100

080/100

040/050

080/100

060/080

060/080

060/080

060/080

060/080

040/050

060/080

060/080

ITEM#:

0225321

D:

0.500

L:

1.075

A:

100°

S:

0.250-28

P:

0.155

P1:

0.250

F:

0.060

GRIT:

080/100

ITEM#:

0225322

D:

0.500

L:

1.075

A:

100°

S:

0.250-28

P:

0.125

P1:

0.170

F:

0.060

GRIT:

080/100

ITEM#:

0225323

D:

0.500

L:

1.075

A:

100°

S:

0.250-28

P:

0.125

P1:

0.250

F:

0.060

GRIT:

080/100

ITEM#:

0225324

D:

0.500

L:

1.075

A:

100°

S:

0.250-28

P:

0.166

P1:

0.250

F:

0.060

GRIT:

040/050

ITEM#:

0225325

D:

0.500

L:

1.075

A:

100°

S:

0.250-28

P:

0.166

P1:

0.250

F:

0.060

GRIT:

080/100

ITEM#:

0225326

D:

0.500

L:

1.075

A:

100°

S:

0.250-28

P:

0.176

P1:

0.250

F:

0.060

GRIT:

060/080

ITEM#:

0225327

D:

0.500

L:

1.075

A:

120°

S:

0.250-28

P:

0.160

P1:

0.180

F:

0.060

GRIT:

060/080

ITEM#:

0225328

D:

0.500

L:

1.075

A:

100°

S:

0.250-28

P:

0.175

P1:

0.250

F:

0.060

GRIT:

060/080

ITEM#:

02253291

D:

0.500

L:

1.075

A:

100°

S:

0.250-28

P:

0.203

P1:

0.230

F:

0.060

GRIT:

060/080

ITEM#:

02253292

D:

0.500

L:

1.075

A:

100°

S:

0.250-28

P:

0.193

P1:

0.200

F:

0.060

GRIT:

060/080

ITEM#:

02253293

D:

0.500

L:

1.075

A:

100°

S:

0.250-28

P:

0.193

P1:

0.200

F:

0.060

GRIT:

040/050

ITEM#:

02253294

D:

0.500

L:

1.075

A:

135°

S:

0.250-28

P:

0.193

P1:

0.300

F:

0.060

GRIT:

060/080

ITEM#:

02253295

D:

0.500

L:

1.075

A:

130°

S:

0.250-28

P:

0.186

P1:

0.235

F:

0.060

GRIT:

060/080

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