Specifications:
1) Flat wood bit extension:
a) Outer diameter: 1/2"
b) Inner diameter: 1/4"
c) Length: 6, 8, 10, 12, 14, 16, 18, 20, 22, 24"
2) Auger bit extension:
a) Outer diameter: 11/16"
b) Inner diameter: 3/8"
c) Length: 6, 8, 10, 12, 14, 16, 18, 20"
3) Application: for extending flat wood bits or auger bits
4) Material: 45# carbon steel, #60 carbon steel

Packing:
Bulk package, plastic bags, double blister or others