Macnaught K29-01 FLEXIGUN 450g Grease Gun - Set of 4

The Macnaught K29 FLEXIGUN is a pistol-grip hand grease gun that you work with one hand. It takes 450g cartridges. You can also fill it from bulk grease using a J3 transfer pump or any 9mm bulk-fill pump. It comes with a flexible 300mm (12") high-pressure extension and a KY SUPERGRIP 3-jaw coupler, so it reaches awkward nipples and grips them without leaking (manufacturer-stated).

Short strokes build more pressure with less grease. Long strokes push out more grease at lower pressure. Delivery pressure is up to 68,900 kPa (10,000 psi) and each shot is up to 0.68g. It handles grease up to NLGI 2. NLGI 2 is the common general-purpose grease grade. Choose the K29 if you buy 450g cartridges. Choose the K32 for 400g cartridges. For the hardest blocked nipples, look at the LEVERGUN range, which Macnaught positions for clearing blocked or damaged nipples (manufacturer-stated).

Where this product is used

• Greasing bearings and pins in workshops, farms and fleets, one-handed (manufacturer-stated)
• Reaching awkward nipples with the flexible extension (manufacturer-stated)
• Filling from bulk grease to cut cartridge waste (manufacturer-stated)
• Mine site, transport and industrial maintenance greasing (manufacturer-stated)

Features

• Takes 450g cartridges or fills from bulk with a J3 pump or any 9mm bulk-fill pump (manufacturer-stated)
• Short strokes for higher pressure, long strokes for more grease per stroke (manufacturer-stated)
• Delivery pressure up to 68,900 kPa (10,000 psi), up to 0.68g per shot (manufacturer-stated)
• Handles grease up to NLGI 2 (manufacturer-stated)
• Reversible follower for cartridge or bulk use (manufacturer-stated)
• Plunge rod locks into the follower to make bleeding air out easier (manufacturer-stated)
• Die-cast head, heavy-gauge steel barrel 1.6mm thick and a robust zinc pull handle (manufacturer-stated)
• Comes with a flexible 300mm (12") high-pressure extension and a KY SUPERGRIP 3-jaw coupler (manufacturer-stated)
• Maker safety advice: wear safety glasses, gloves and safety shoes, and never point the nozzle at yourself or anyone else (manufacturer-stated)

Key specifications

Specification values are manufacturer-stated (Macnaught product page, 2026 catalogue (p14-15) and K29/K32 instruction manual, part number K29-01).

Supplied with

• K29 FLEXIGUN 450g grease gun
• Flexible 300mm (12") high-pressure extension
• KY SUPERGRIP 3-jaw coupler
• Not included: grease cartridge