VSH-3 — Sharpens all Philips/Norelco shavers using these replacement heads: HQ-9. – Vollco Shaver Sharpeners
Sharpening Electric Shaver in under 5 Minutes (How to DIY) - YouTube
Amazon.com: Vollco Sharpening Heads VSH-2 Black - Sharpens All Philips Norelco Shavers Using These Replacement Heads: HQ-167, HQ-177, HQ-5, HQ-55, HQ-56, HQ-6 HQ-7, HQ-8, SH-30 and SH-50 : Beauty & Personal Care
How Often Should You Replace an Electric Razor? – Refined Shave
How to clean and sharpen electric shaver blades by regrinding them. Renew your razor. - YouTube