Original sentence: After hardening, many blades are tempered to maximum toughness, often nearly spring tempered.Most stainless steel machetes should be avoided, as a lot of high carbon stainless cannot stand up to repeated impacts, and will easily break if abused
Edited sentence: After hardening, the blades must be tempered to maximum toughness, often nearly spring tempered.Stainless steel machetes should be avoided, as stainless cannot stand up to repeated impacts, and will easily break if abused