Counter-Bore (For Cap Screw)

Description

High Speed Steel. 4-flute.

Enlarge the top porting of an existing hole by forming a cylindrical-shaped opening with a flat bottom.

This acts as a seat for a standard cap screw head M3 ~ M12mm.

Product form

Counter-Bore (For Cap Screw)

$12.00

3.2 x 5.9 x 6 x 50mm for M3 Cap Screw
4.2 x 7.4 x 6 x 50mm for M4 Cap Screw
5.2 x 8.9 x 6 x 50mm for M5 Cap Screw
6.2 x 10.4 x 6 x 50mm for M6 Cap Screw
8.2 x 13.4 x 10 x 67mm for M8 Cap Screw
10.3 x 16.8 x 12 x 75mm for M10 Cap Screw
12.3 x 18.8 x 12 x 75mm for M12 Cap Screw

Pilot D x Large D x Shank D x Overall

3.2 x 5.9 x 6 x 50mm for M3 Cap Screw
4.2 x 7.4 x 6 x 50mm for M4 Cap Screw
5.2 x 8.9 x 6 x 50mm for M5 Cap Screw
6.2 x 10.4 x 6 x 50mm for M6 Cap Screw
8.2 x 13.4 x 10 x 67mm for M8 Cap Screw
10.3 x 16.8 x 12 x 75mm for M10 Cap Screw
12.3 x 18.8 x 12 x 75mm for M12 Cap Screw

SKU: 113-M3

Shipped today? Order within: Jun 12, 2026 13:00:00 +1000

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Description

High Speed Steel. 4-flute.

Enlarge the top porting of an existing hole by forming a cylindrical-shaped opening with a flat bottom.

This acts as a seat for a standard cap screw head M3 ~ M12mm.