Dieter Schmid's Fine Tools
Steel Honing Plate, Lapping Plate

Steel honing plate, lapping plate, diamond flattening plate to flatten chisels, blades, plane soles

Veritas steel honing plate

Precision-ground to a flatness tolerance of 0.005 inch (0.1 mm) over the entire surface, this honing plate is an excellent baseplate for diamond paste. Made of dimensionally stable low-carbon steel, it will retain its flatness over a lifetime of ordinary use; unlike sharpening stones, it will never need truing.

The machining process creates a regular surface pattern, imparting a very slight texture to help capture the diamond grit without compromising overall flatness. In use, the diamond particles readily embed into the softer steel to form a durable, fast-cutting abrasive surface. A dedicated plate for each grit size lets you progress through your grit grades without risk of cross-contamination.

Plates can be glued to a backing board for ease of handling and storage. Similar in size to a regular water stone, each measures 8 x 3 x ⅜ inch (203 x 76 x 9.5 mm) and weighs just under 2½ lb (1130 g). Sold individually. Made in Canada.

User instructions
Guide d'instruction (francais)
Diamond paste

Code 308860CartPrice € 24.90
Veritas lapping plate

This steel lapping plate is for flattening chisels, plane blades and the body of cast iron planes. The plate has grooves to take the slurry.

It is not intended for heavy material removal. Rather it is meant for conditioning or smoothing previously ground surfaces and should be used with a light mineral or honing oil and silicon carbide powder.

Important: This lapping plate should not be used
  • for flattening water stones, as the oil lubricant will ruin the water stone
  • with water as a lubricant, as water will rust the lap
  • for flattening oil stones, as residual grit on the lap can be transferred to the stone and may result in scratches during honing
  • as a replacement for a honing stone, as the grooves make it unsuitable for a honing guide and may cause the blade bevel to be seriously damaged

User instructions
Guide d'instruction (français)
Size 305 x 105 x 32 mm (12 x 4-1/8 x 1-1/8 inch)
Weight 6.5 kg

Code 308620CartPrice € 98.00
Shapton Kubo K0799 diamond flattening plate for whetstones and plane blades

This is the most versatile and useful flattening and sharpening block available on the market today. It is two-sided: the side with the deep grooves (top photo) is for flattening sharpening stones, the side with small perforations is designed to flatten the backs of plane blades, chisels and similar tools. An area of 70 x 48 mm on this side is free of perforations to prevent smaller tools from catching in the surface. This Shapton diamond flattening block is the only one designed to work on both stones and on planes, chisels and other blades.

The monocrystalline diamond chips are embedded in a coating of nickel on the surface of the plate. The body of the flattening plate is made of a hard alloy of cast bronze. The grit grade is the same on both sides of the plate, and lies somewhere between 270 and 325, but note that diamond grit cuts better and faster than an equivalent grit grade on conventional water stones.

Enlarged photo of the side for flattening water stones
Enlarged photo for flatting plane irons and chisels
Flattening plate stored in rubber box

The two-part heavy rubber box serves as a slip-proof base when using the plate or as a holder for any other water stone. Use only water as a lubricant with this plate!

Detailed instructions

Size including rubber box 266 x 93 x 37 mm
Diamond-surface 242 x 70 mm
Weight 3 kg

Code 310997CartPrice € 539.00
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