| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| lead hardness testing pencils | 1.52 | 0.7 | 5517 | 97 | 29 |
| lead | 1.65 | 1 | 8938 | 89 | 4 |
| hardness | 0.92 | 1 | 3251 | 14 | 8 |
| testing | 0.73 | 0.2 | 6570 | 53 | 7 |
| pencils | 0.05 | 0.1 | 3075 | 12 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| lead hardness testing pencils | 1.84 | 0.1 | 832 | 31 |
| staedtler pencils for testing lead hardness | 0.14 | 0.4 | 7530 | 26 |
| hardness of lead pencils | 1.52 | 0.3 | 4988 | 67 |
| lead hardness scale for pencils | 1.06 | 0.9 | 3544 | 75 |
| pencil lead hardness guide | 0.74 | 0.5 | 4814 | 74 |
| pencil lead hardness ratings | 1.27 | 0.1 | 6000 | 88 |
| hardness of pencil lead | 1.73 | 0.1 | 1470 | 4 |
| pencil lead hardness chart | 0.29 | 0.8 | 6377 | 32 |
| pencil lead hardness scale | 0.96 | 0.5 | 293 | 48 |
| lead pencil hardness grades | 2 | 0.3 | 6478 | 30 |
| pencil lead hardness chart and darkness | 1.9 | 1 | 6846 | 60 |
| mechanical pencil lead hardness | 0.28 | 0.4 | 1722 | 14 |
| mechanical pencil lead hardness chart | 1.26 | 0.6 | 8543 | 15 |
| mechanical pencil lead hardness rating | 0.96 | 0.3 | 7581 | 45 |
| types of pencil lead hardness | 0.09 | 0.4 | 7575 | 39 |
| mechanical pencil lead sizes and hardness | 1.5 | 0.7 | 1430 | 5 |
| difference in pencil lead hardness | 0.25 | 0.9 | 7074 | 42 |
| best pencil lead hardness for writing | 1.62 | 0.6 | 9507 | 30 |
| mechanical pencil lead hardness scale | 1.51 | 0.4 | 4018 | 78 |
| drafting pencil lead hardness scale | 0.53 | 0.7 | 7838 | 24 |
