Best JDM Ajing Jig Heads: 7 Heads from 0.2 g to 4 g, and When Tungsten Is Worth It

Ajing (アジング) is the Japanese light game built around aji, the Japanese horse mackerel (Trachurus japonicus). It’s a small fish that feeds by sucking in water, and it’s quick to spit out anything that feels wrong. So the jig heads made for it are among the lightest in a Japanese tackle shop. The seven on this page run from 0.2 g to 4 g, and Daiwa’s own lead ajing head stops at 2.5 g.

Weight is only half of it. An ajing hook has a short shank so the whole head fits inside a small mouth, and the gape is either wide open for a fast strike or turned in so a light bite hooks itself. Hook sizes run #12 to #8, matched to worms from about one to two inches long. Get the hook wrong and a head of the perfect weight still misses fish.

All seven are Japan-only, so the links go to Amazon Japan, which ships internationally (check availability and shipping cost at checkout). The rods and reels that cast them are in our JDM LRF rods and reels guide.

Weight, Hook Shape and Head Material: What Changes on the Water

Weight sets the fall. A lighter head sinks slower and spends longer at the depth the fish are holding. Wind, current and distance push you heavier. You’ll carry more weights than hook sizes, which is why every maker here sells the same head in five to eight weights.

Hook size follows the worm. Daiwa is the only maker here that prints a pairing: #12 for 0.9 to 1.5 in worms, #10 for 1.5 to 2.0 in, and #8 for 1.8 to 2.2 in. It works as a starting point for the other brands too.

Open gape or point-in. An open gape leaves the point exposed so a sharp strike drives it home. A point-in hook, nemuri (ネムリ) in Japanese, has the tip turned toward the shank, and TICT sells it for small bites that don’t give you time to strike. TICT is the only maker here that offers both shapes in the same series.

Lead or tungsten. Daiwa puts its tungsten alloy head at about 30% less volume than lead of the same weight. A smaller head catches less air on the cast, and the harder metal sends more of the bottom back up the line. At 1.0 g, Daiwa charges nearly two and a half times as much per head.

Line matters as much as the head. At these weights you’re on very thin braid or leader, and the Japanese gou sizes printed on the spools are decoded in our PE and leader ratings guide.

Calm Water at Night, 0.5 to 1.5 g: Daiwa and TICT Lead Heads

Still water under a light is where the lightest lead heads work best. With no wind and little current, a 0.5 to 1.5 g head holds its line to you and you can count it down.

Daiwa Gekkabijin Ajing Jig Head: three hook sizes, one head shape

Gekkabijin (月下美人) is Daiwa’s light salt brand, launched in 2005. The Gekkabijin Ajing Jig Head borrows its hook from the tungsten version further down: a short shank, an open gape and gold plating, which Daiwa says aji respond to. The three hook sizes are aimed at three kinds of bite, according to Daiwa: fish that inhale the worm, fish that peck at it, and mame-aji, the small aji that show up in numbers.

The printed worm pairing is the reason to start here. You pick a worm length, read off the hook size, then pick a weight. The 3D eye and silver finish are Daiwa’s call on what gets a bite. The worm keeper is less subjective: it’s there to stop a soft worm creeping down the shank, which is how you lose the second bite after a short one.

The #12 stops at 1.5 g, so the smallest hook can’t go heavy for wind. If you want a small hook on a heavier head, the Jazz #12 below goes to 2.0 g.

TICT Ajista!: the point-in SS for bites you can’t hit

TICT is a Japanese light game tackle maker, and the Ajista! is its standard ajing head. It comes in three hook sizes, S, M and SS, and they aren’t just smaller and larger. S and M have an open gape for fast hooksets. SS has a point-in hook, which TICT specifies to follow up tiny bites that a strike would miss, and it goes down to 0.2 g, the lightest head on this page.

TICT publishes hook sizes as S, M and SS rather than numbers, so you can’t line it up against Daiwa’s #12 to #8 chart on paper. Five heads a pack against Daiwa’s four makes it the cheaper lead head per piece, and that’s with TICT’s price including tax and Daiwa’s not.

Small Aji and Sub-Gram Drifts: Jazz Shaku Head DX mini R

When the fish are small and sitting high, the head has to be tiny and drop slowly. That means 0.3 to 0.5 g, and a hook small enough for a fish you could hold in two fingers.

Jazz Shaku Head DX mini R type: the cheapest way to carry every weight

Jazz’s Shaku Head (尺ヘッド) takes its name from shaku, an old unit of about 30 cm that Japanese anglers use for a big aji or mebaru. The DX mini puts a smaller hook on that head, with the point turned slightly inward and a micro barb. Jazz makes it in two head shapes, R type and D type. This is the R type, and it starts at 0.3 g.

Every size also comes in a 20-head pack for ¥1,300, which works out to ¥65 a head against about ¥113 for the Daiwa lead head. For a light game angler who snags a few heads a night, that difference adds up. The weight is stamped on the head, so a loose handful in a box stays sorted.

Jazz prints no worm pairing. Use Daiwa’s chart as a guide: the #12 suits worms of about an inch to an inch and a half.

Wind, Current and Distance: Two Tungsten Heads

A breeze across the line is enough to stop you feeling a 1 g lead head, and a tide run sweeps it out of the zone. Going heavier in lead makes the head bigger and faster-sinking. Tungsten gives you the weight in a smaller head, which is the whole case for paying more.

Daiwa Gekkabijin Ajing Jig Head TG: a cup on the head to hold depth

The Gekkabijin Ajing Jig Head TG came first; the lead head above borrowed its hook. Daiwa’s tungsten alloy runs about 30% smaller than lead for the weight, which is where the extra distance comes from. The round head carries a small cup that Daiwa calls a tide-catching cup. It grips the water, so you feel the retrieve and the head holds its depth more easily.

At 1.0 g a pack of three costs ¥800, against ¥450 for four lead heads. Buy it in the one or two weights you actually lose to wind, not across the range.

TICT Ajista TG: white-gold hooks and a heavy-wire MH

The Ajista TG keeps the Ajista’s short shank and open gape but changes the hook color. The platinum finish follows the white hook used on Tosa kabura, a traditional Japanese aji rig, which TICT describes as a favorite of experienced anglers alongside gold. The MH size is the thickest hook wire TICT has made, built for bigger fish, and it takes the series to 4 g. There’s no point-in version here, so the SS stays with the lead Ajista.

The S tungsten starts cheaper than the Daiwa TG at the light end. TICT’s price is tax-inclusive and Daiwa’s isn’t, so the real gap is wider than the table shows.

Fast Strikes and Worms That Stay Put: Decoy and Owner

Ajing anglers strike with a quick flick of the wrist and aim to hook the top of the mouth, where Decoy says a fish is least likely to come off. Two things go wrong. The point doesn’t go in on a short stroke, or the worm slides down the shank after the first bite and the second one never comes. These two heads each go after one of those.

Decoy Aji Drive SV-55: fine wire for a short strike

Decoy is the lure-hook brand of the Japanese hook maker Katsuichi. The Aji Drive SV-55 is its ajing-only head, and Decoy’s description is about hooking. The fine-wire hook is designed to go in on a short, wrist-only strike.

It only comes in #8. Daiwa pairs its own #8 with 1.8 to 2.2 in worms, and hook sizes vary a little between makers, but either way this is a head for bigger worms. For small aji and sub-inch worms, go back to the Ajista SS or the Jazz #12.

Owner C’ultiva JH-84 Aji Dangan: a flat head you can hold

Owner is one of Japan’s big hook makers, and C’ultiva is its lure-hook line. The JH-84 Aji Dangan has a flat face molded into the head, and the reason is practical: aji leave slime on your fingers, and a flat face gives you something to grip while you rehook a worm in the dark. The worm is held at two points, by the angle of the gape and a thread keeper. Owner balances the head to answer a bite from any direction, left, right or at an angle, which it says sets it apart from a mebaru head.

Owner’s product page lists the eight weights and the price, and nothing else: no hook size and no count per pack. Check the packet photo on the listing before you order.

Comparison Table: Seven Ajing Heads Side by Side

Best Value Picks: Three Heads to Order First

Which Ajing Head to Buy

Pick the hook before the brand. If you’ve been getting taps and not hooking fish, the TICT Ajista SS is the point-in answer, or the Decoy Aji Drive if you’re fishing bigger worms and want a hook that goes in on a short strike. If the worm keeps ending up halfway down the shank, try the Owner Aji Dangan or the Decoy’s Body Lock Keeper.

Then settle the weight. Lead from 0.5 to 1.5 g covers still water. Tungsten earns its price only when wind or current takes the feel away, and one or two weights of it are enough.

Heads, worms and leader are small and light, so they’re easy to add to a bigger order from Japan. The ways to get it here, and what customs will ask, are in how to buy JDM tackle from overseas. For fishing rock and kelp rather than a harbor wall, our LRF guide for UK rock marks covers the heavier rigs that ground calls for.

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マイボートで海に出るボートアングラー（釣り歴20年・ボート歴10年）。タイラバ・ひとつテンヤ・ライトジギングが主戦場で、エリアトラウトや堤防のライトゲームものんびり楽しむ雑食派。

実際に使った道具の「正直どうだったか」を、公式スペックと実釣の両面から書いています。

Boat angler based in Japan, sharing first-hand reviews of JDM tackle.