Choosing the Right Handpiece: Saeyang H35LSP vs SH37LN

When you step up from the standard H200, the two handpieces you'll most often be choosing between on a Marathon Champion are the H35LSP and the SH37LN. On paper they share the same body — the difference is in speed and torque.

Technical Specifications Comparison

All figures below are Saeyang's official specifications.

The H35LSP: The All-Rounder

The H35LSP covers everything a nail tech does day to day — cuticle prep, gel removal, acrylic shaping — with 3.2 Ncm torque and a 35,000 rpm ceiling. Most nail work happens at 15,000–25,000 rpm, so the ceiling is rarely the limit.

Professional Advantages

• Proven all-round performance: The UK's most popular Champion configuration
• Plenty of torque for daily work: 3.2 Ncm handles gel and acrylic removal without stalling
• Lower price: The cheaper of the two Champion sets

Saeyang Marathon 3 + H35LSP (Gray Head)

Torque3.2 Ncm

Max RPM35,000

The all-rounder. 35,000 rpm and 3.2 Ncm torque — everything most nail techs need, every day.

£180

Buy at Coheal UK

The SH37LN: More Speed, More Torque

The SH37LN is the stronger of the two: 4.5 Ncm torque and a 40,000 rpm ceiling. That extra torque is what matters when you're debulking thick acrylic or working on hard, thickened nails — the bit holds its speed under load instead of slowing down.

Professional Advantages

• Higher torque: 4.5 Ncm vs 3.2 Ncm — around 40% more
• Higher speed ceiling: 40,000 rpm vs 35,000 rpm
• Same size and weight: No extra bulk for the extra power

Saeyang Marathon 3 + SH37LN (White)

Torque4.5 Ncm

Max RPM40,000

The power upgrade. 40,000 rpm and 4.5 Ncm torque in the same 210g body as the H35LSP.

£196

Buy at Coheal UK

Ergonomic Assessment

• H35LSP: 210g, 152mm × Ø28mm
• SH37LN: 210g, 152mm × Ø28mm
• Size and weight: identical on paper — in the hand, the two feel the same; the difference is under load

Professional Recommendations

Choose H35LSP If:

• You do mainly natural nails, gel and routine acrylic maintenance
• You want the proven, lower-cost all-rounder
• You rarely work above 25,000 rpm

Choose SH37LN If:

• You regularly debulk thick acrylic or hard gel
• You work on thickened nails or podiatry cases
• You want the extra torque headroom for a small price difference

Specifications from Saeyang's official product pages. This comparison was written independently by the Nail Drill Compare Editorial Team.