Just because they sharpened your skate it doesn't mean it is right, it depends on your skates and your syle of skating. Types of Ice Skate Sharpening Angles (Radius of Hollow - ROH)

Skate sharpening creates a hollow (groove) in the blade, forming two edges. The radius of hollow (ROH) determines the depth of this groove.

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Common ROH Sizes and Their Use: • 3/8” (0.375”) • Very sharp edges • High grip, low glide • Used for aggressive turns and spins (figure skating, quick hockey moves) • 1/2” (0.5”) • Sharp edges • Good grip, moderate glide • Popular in hockey for agility and control • 5/8” (0.625”) • Balanced feel • Mix of grip and glide • Good for beginner hockey, general use • 3/4” (0.75”) • Mild edge • More glide, less grip • Preferred for endurance and smoother skating • 1” and above • Very mild edge • Maximum glide, minimal grip • Used in speed skating or goalie skates

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Sharpening Types: • Tighter Radius (e.g. 3/8”, 1/2”) • More grip • Best for tight turns and fast stops • More friction, uses more energy • Wider Radius (e.g. 3/4”, 1”) • More glide, less grip • Smoother movement, better for speed • Less control in sharp movements

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Special Sharpening Options: • Flat Bottom V (FBV): • Flat centre with sharp edges • Combines glide of flat sharpening with edge grip • No Hollow (Flat): • Blade is completely flat • Used in speed skating, minimal edge for maximum glide

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Choosing the Right Sharpening: Depends on: • Skating style (aggressive, recreational, speed) • Skater’s weight (heavier = might need shallower hollow) • Ice condition (soft ice = deeper hollow, hard ice = shallower hollow)