# Best Hobby Clamps for Model Assembly Source: https://modelbuildlab.com/best/best-hobby-clamps Updated: 2026-10-06 Publisher: Model Build Lab. Our score is an editorial rating out of 10 (fit 35%, features 25%, build 20%, value 20%), not a customer rating. Method: https://modelbuildlab.com/how-we-research#our-score Glue does its best work under gentle, even pressure, and fingers cannot supply that for the twenty minutes a seam needs. Hobby clamps hold fuselage halves closed, keep hull joints aligned, and press wing roots tight while cement cures, all without leaving marks in soft styrene. The trick is scale: woodworking clamps are far too strong and heavy for plastic kits. Modeling calls for light spring clamps with soft jaws, adjustable plastic clips, magnetic jigs that square up ship hulls and building walls, and flexible bands for wrapping irregular shapes. This guide compares the clamp types that suit plastic model assembly, what jaw capacity and pressure make sense, and which sets give a full range of holding options for little money. ## Picks ### 1. POWERTEC Mini Spring Clamps Set - 10 Pack Plastic Clips with 1-Inch Opening and Pivoting Jaw Pad, Ideal for Backdrop Clips, Pool Covers, DIY Projects, and Woodworking (71018) Our score: 7.9/10 (Fit for the job 9/10 · Features and specs 7/10 · Build and materials 7/10 · Value 8/10) Pack of 10 POWERTEC mini spring clamps with a 1-inch opening, reinforced nylon bodies and pivoting jaw pads. Small, light clamps for holding glued model parts and sub-assemblies while the cement sets. Pros: - Pivoting jaws with pliable pads adapt to the part and are described as non-marring - Reinforced nylon construction keeps each clamp light enough for delicate assemblies - 1-inch opening suits fuselage halves, wing joints and other small glued seams Cons: - 10 clamps per pack, half the count of the 20-pack this pick replaces - 1-inch maximum opening is too small for large hulls or wide diorama bases Details: https://modelbuildlab.com/product/B002DSA6QA ### 2. 30 Pcs 2 Inch Small Spring Clamps, Heavy Duty Red metal Mini Clamps Our score: 7.8/10 (Fit for the job 8/10 · Features and specs 7/10 · Build and materials 7/10 · Value 9/10) Thirty 2 inch metal spring clamps with a 0.78 inch maximum opening, PVC coated handles and plastic jaw covers. A cheap bulk pack for holding small seams, wings and tail planes while glue sets. Pros: - 30 clamps in one pack, so you can line a whole fuselage seam and still have spares for the next step - Non-slip plastic covers on the clamp heads protect the model surface from bare metal - Nickel plated steel bodies with tempered steel springs, described as durable and rust resistant Cons: - 0.78 inch maximum opening limits them to thin and small assemblies; larger hulls need bigger clamps - All 30 clamps are one size from a little-known brand, so there is no assortment of jaw sizes Details: https://modelbuildlab.com/product/B0DBHLBFC5 ### 3. StewMac Rubber Clamping Bands, Wide, 1-lb Pack of 5 Bands, 3/4" Wide x 84" Long Our score: 7.6/10 (Fit for the job 7/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10) StewMac Rubber Clamping Bands, wide, 1-lb Pack of 5 Bands, 3/4" wide x 84" long, for wrapping odd-shaped glue-ups. Pros: - Long 84" bands wrap around hulls and curved assemblies - Even pressure hugs irregular shapes clamps cannot grip - Reusable rubber bands last through many projects Cons: - Wide bands are oversized for small scale parts - Wrapping takes practice to keep parts aligned Details: https://modelbuildlab.com/product/B075VFYW9W ### 4. Modelcraft 50 mm Plastic G-Clamps, Black Our score: 7.4/10 (Fit for the job 8/10 · Features and specs 7/10 · Build and materials 6/10 · Value 8/10) Modelcraft 50 mm Plastic G-Clamps in black, lightweight clamps for gluing small model parts and assemblies. Pros: - 50 mm opening suits wings, hulls and small assemblies - Plastic construction is gentle on model surfaces - Lightweight clamps will not pull delicate parts over Cons: - Plastic threads can strip under heavy pressure - Check how many clamps come in the pack before ordering Details: https://modelbuildlab.com/product/B0041O6884 ### 5. Heavy Duty Spring Clamps, 3.7-Inch, 1.6-Inch Jaw Opening, 12-Pack Our score: 7.2/10 (Fit for the job 7/10 · Features and specs 7/10 · Build and materials 7/10 · Value 8/10) A 12-pack of 3.7 inch spring clamps with a 1.6 inch jaw opening and pivoting pads. Useful for larger joints like ship hulls, big fuselage halves and wooden bases that mini clamps cannot span. Pros: - 1.6 inch jaw opening reaches around wider assemblies that 1 to 2 inch mini clamps cannot span - Pivoting pads sit flat on curved or angled surfaces and help protect the workpiece from damage - Twelve clamps in the pack, enough to space along a long seam while the cement cures Cons: - High-tension springs made for woodworking can be too strong for thin styrene, so check pressure on scrap first - At 3.7 inches long these are bulky for small 1:72 parts and tight spots, where mini clamps work better Details: https://modelbuildlab.com/product/B0FGBFNQNZ ### 6. WoodRiver Rubber Band Clamp Kit Our score: 7.2/10 (Fit for the job 7/10 · Features and specs 7/10 · Build and materials 8/10 · Value 7/10) WoodRiver Rubber Band Clamp Kit, a woodworking band clamp set that also helps with wooden ship and hull glue-ups. Pros: - Band clamps apply even pressure around curved frames - Useful for wooden ship kits and diorama boxes - Kit format gathers bands and accessories together Cons: - Woodworking scale is too big for most plastic kits - Kit contents are not detailed in the product name Details: https://modelbuildlab.com/product/B003A0FBCY ### 7. TZBTSTEAM Rubber Bands for Technic Parts, Compatible with Building Block Brands Our score: 5.6/10 (Fit for the job 5/10 · Features and specs 5/10 · Build and materials 6/10 · Value 7/10) TZBTSTEAM Rubber Bands for Technic parts, replacement bands for building blocks that can double as light hobby clamps. Pros: - Small bands can hold light parts while glue cures - Inexpensive, so you can use many at once - Handy for holding plastic halves together gently Cons: - Designed for building blocks, not model clamping - Light tension will not hold larger assemblies firmly Details: https://modelbuildlab.com/product/B0FD74M991 As an Amazon Associate I earn from qualifying purchases.