Heavy Duty piercing power for thick fabrics
The HD6705C belongs to Singer's Heavy Duty series, and the manufacturer lists enhanced piercing power as a key feature: the needle goes through dense material more firmly instead of stalling. That matters when you sew denim, coat fabric, several layers of cotton or curtains. A top speed of 1000 RPM gets long straight seams done quickly, while the speed control lets you slow the same machine down when precision matters more than pace.












