Dan's Whetstone offers Arkansas stones of the following types:

R2 Standard features 2x asymmetric angled universal clamps that can be turned inward (for small knives) or outward (for long knives)

Dialux Compound has complex composition

Bethesda Black Arkansas sharpening stones are used for sharpening knives on KME and Hapstone knife sharpeners

CS-HD 1000

side straight clamps for hapstone r2 pair Dan's Whetstone offers Arkansas stonesStraight Side Clamps for Hapstone R2 and Hapstone Rotating Module utilizes flexible flat spring and spacer screw to secure knives of any shape including a full flat grind. Straight Clamps can be combined with Y Shaped Central Clamp and or Angled Universal Clamps. The kit includes 2 clamps. Straight Side Clamps are part of Hapstone R2 Classic kit.