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Kerfline

KERFLINE · WORKSHOP GOODS

Cut to the line.

Wearable drawings for people who own a shooting board. Exploded joints, bevel geometry, and plan-sheet linework — drawn correctly, printed at premium quality. Craft literacy, not fandom.

THROUGH-DOVETAIL · HOVER TO INSPECT

PINHALF PINTAILSHOULDERBASELINE7/8″1:8

EXPLODED VIEW · REF

Drawing
KERFLINE WORKSHOP GOODS
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A — 2026

The drawings

The slope gauge

One 1:8 for hardwood, laid out with a bevel gauge. Insiders read ratios, never degrees.

Quarter notation

Four-quarter to eight-quarter — rough thickness in quarter inches, the way the yard talks.

The bevel section

A 25° primary and a 30° micro-bevel drawn the size it really is. Scary sharp, by the numbers.

By discipline

Field guides

DETAIL — SHEET PENDING

JOINERY · Jul 13, 2026 · 6 MIN

Dovetail Slope Ratios: Why 1:8 Isn't a Law

The 1:8 hardwood, 1:6 softwood rule is a convention with real reasons behind it, and a usable band from about 1:5 to 1:9 where the exact number barely matters. Where the ratios come from, what breaks at the extremes, and why your baseline matters more than your slope.

Read the sheet →

Every guide →

The shortlist

The tools worth gifting — see the full ranking on the best-gear sheet.

A note from the notes column: some links on this page are affiliate links. As an Amazon Associate we may earn a commission when you buy through them — at no extra cost to you. It never changes the price you pay.

6 guides drawn

8 tools vetted

29 reader price checks

On the bench

Original drawings, printed to order.

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The first sheet is at the printer.

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