Frequently Asked Questions

  • It is important to order the correct size of CoreBlock Plug that matches the O.D. of your split spoon sampler. A lot of drillers use 2" split spoon sampler with 3 1/4" HSA.

  • Yes, most customers report increasing their drilling and sampling efficiency by 15% to 25%. Results can vary with the speed and depth of the drilling and sampling.

    • Content: You should receive your order within 7 to 10 days. A tracking number will be sent to you with each order.

  • It is important to order the correct size of CoreBlock Plug that matches the I.D. of the HSA that you use. A lot of drillers use 3 1/4" HSA.ription

  • The CoreBlock Plug is best used in soils that have an "N-value" of at least 4 blows per foot (ASTM:D1586).

  • Drillers typically take 40 to 50 SPT samples per day. Since CoreBlock Plugs are a one-time use product, we suggest ordering in bulk.