New Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore

3-1/2" Overall Length, Bright Finish

specs

1) For 8mm Socket Head Cap Screw 6" oal 9mm pilot

1/2 shank diameter

1) For 6mm Socket Head Cap Screw 5" oal 6.6 mm pilot

3/8 shank diametr

1) For 5mm Socket Head Cap Screw 5" oal 5.5 mm pilot

3/8 shank diametr

1) For 4mm Socket Head Cap Screw 3-1/2 oal 4.5 mm pilot

3/8 shank diametr

(K) box