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"American-Made Precision Gunsmithing Tools Since 1958"

Clymer Precision is a premier American manufacturer of high-quality chamber reamers, headspace gauges, and specialized gunsmithing tools.

Shop All Clymer Precision Products

229

Products

196

In Stock

1958

Founded

USA

Origin

All Clymer Precision Products (196)

Clymer 5.56MM NATO FINISHING REAMER

Clymer 12 GAUGE BACK-BORE REAMER .735 DIA.

Clymer 12 GAUGE BACK-BORE REAMER .730 DIA.

Clymer STD BARREL SPINNER CENTERS

Clymer LONG FORCING CONE REAMER 20 GA

Clymer LONG FORCING CONE REAMER 12 GA

Clymer 6.5 CREEDMOOR HEADSPACE GAUGE KIT STEEL

Clymer 6MM ARC HEADSPACE GAUGE KIT STEEL

Clymer 6MM ARC LIVE PILOT FINISHER

Clymer 6.5 PRC HEADSPACE GAUGE KIT STEEL

Clymer 6.5 PRC LIVE PILOT FINISHER

Clymer 6.5X47MM LAPUA HEADSPACE GAUGE KIT STEEL

Clymer NO GO 6.5MM CREEDMOOR HEADSPACE GAUGE STEEL

Clymer 6.5MM CREEDMOOR GO HEADSPACE GAUGE STEEL

Clymer NO GO 224 VALYRIE HEADSPACE GAUGE STEEL

Clymer 224 VALKYRIE GO GAUGE HEADSPACE GAUGE STEEL

Clymer 224 VALKYRIE LIVE PILOT FINISHER

Clymer 6MM CALIBER BUSHING PACK

Clymer .30 CALIBER BUSHING PACK

Clymer 6.5 CALIBER BUSHING PACK

Clymer 25-06 REMINGTON LIVE PILOT FINISHER

Clymer 308 WINCHESTER NATIONAL MATCH LIVE PILOT FINISHER

Clymer 6.5X47 LAPUA LIVE PILOT FINISHER

Clymer 223 WYLDE LIVE PILOT FINISHER

Clymer 308 WINCHESTER LIVE PILOT FINISHER

Clymer 300 AAC BLACKOUT LIVE PILOT FINISHER

Clymer 30-06 SPRINGFIELD LIVE PILOT FINISHER

Clymer 270 WINCHESTER LIVE PILOT FINISHER

Clymer 223 REMINGTON LIVE PILOT FINISHER

Clymer 22-250 REMINGTON LIVE PILOT FINISHER

Clymer 7MM-08 REMINGTON LIVE PILOT FINISHER

Clymer 6.5MM CREEDMOOR LIVE PILOT FINISHER

Clymer 22 LONG RIFLE HEADSPACE GAUGE KIT STEEL

Clymer 40 S&W HEADSPACE GAUGE KIT STEEL

Clymer 7.62X54R HEADSPACE GAUGE KIT STEEL

Clymer 30-06 SPRINGFIELD FIELD GAUGE STEEL

Clymer 308 WINCHESTER FIELD GAUGE STEEL

Clymer .308 CHAMBER REAMING KIT

Clymer .223 CHAMBER REAMING KIT

Clymer 9MM LUGER HEADSPACE GAUGE KIT STEEL

Clymer 45 ACP HEADSPACE GAUGE KIT STEEL

Clymer 7.62X39MM HEADSPACE GAUGE KIT STEEL

Clymer NO GO 5.56X45MM NATO HEADSPACE GAUGE STEEL

Clymer GO5.56NATO 5.56mm Steel Headspace Gauge Premium

Clymer NO GO 204 RUGER HEADSPACE GAUGE STEEL

Clymer 204 RUGER GO GAUGE HEADSPACE GAUGE STEEL

Clymer NO GO 300 AAC BLACKOUT HEADSPACE GAUGE STEEL

Clymer 300 AAC BLACKOUT GO HEADSPACE GAUGE STEEL

About Clymer Precision

Clymer Precision is a highly respected name in the firearms industry, specializing in the manufacture of premium-grade gunsmithing tools. For decades, they have provided professional gunsmiths, custom rifle builders, and firearm manufacturers with exceptionally precise chamber reamers, headspace gauges, and crowning tools. Each tool is engineered and manufactured in the USA from premium materials, ensuring the tightest tolerances and cleanest cuts for a wide variety of calibers. Their extensive product catalog includes finishing reamers, roughing reamers, and headspace gauges designed to meet SAAMI and CIP standards. Whether you are chambering a new barrel or checking critical headspace for safety, Clymer's tools deliver the reliability and consistency required for high-performance shooting sports and custom firearm builds.

Headquarters

Rochester Hills, Michigan

Established

1958

Country of Origin

USA

History & Heritage

Founded in 1958, Clymer Precision has spent over six decades perfecting the art of precision machining for the firearms industry. Operating out of Rochester Hills, Michigan, the company has built a reputation for outstanding quality and customer service, utilizing advanced manufacturing technology to produce tools that consistently exceed industry expectations.