1/2x28 Thread Protector for Most .22LR .223 & 5.56 and 5/8x24 Thread Protector for .308 LR308.

Made of CNC machined steel with uniform black oxide finish.Heat Treated & Solid Machined Construction.

Smooth accurate threading & Good knurling to provide excellent grip.

Package Included: 2 PCS Thread Protector 1/2 x 28 9mm and 2 PCS Thread Protector 5/8x24

Knurled for quick, tight and tooless use,Small & Compact highly effective