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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 6MM CREEDMOOR LP FINISH REAMER M42 HSS

Clymer Pull Through Chamber Reamer Extension Shaft Gunsmithing Tool

Clymer .308 P/T REAMER COMPLETE SET

Clymer RIM CUTTER 55 FITS 20 GAUGE

Clymer Rifle T-Handle Gunsmithing Tool Reamer Handle

Clymer 12" Rifle Extension Reamer Handle Gunsmithing Tool

Clymer RIMMED FINISHER STYLE REAMER FITS .38 S&W SPECIAL CYLINDER

Clymer RIMMED FINISHER STYLE REAMER FITS .32 H&R MAG CYLINDER

Clymer .22 RIMFIRE REVOLVER FIN. STYLE FITS .22 LONG RIFLE CHAMBER

Clymer 338 WINCHESTER MAGNUM FINISHER CHAMBER REAMER

Clymer 30-40 KRAG FINISHER CHAMBER REAMER

Clymer 308 WINCHESTER ROUGHER REAMER

Clymer 32-40 WINCHESTER FINISHER CHAMBER REAMER

Clymer 30-30 WINCHESTER FINISHER CHAMBER REAMER

Clymer 300 REMINGTON ULTRA MAG FINISHING REAMER

Clymer 7MM STW FINISHER CHAMBER REAMER

Clymer 7.62X39MM FINISHING REAMER

Clymer 270 WINCHESTER FINISHING REAMER

Clymer 250 SAVAGE FINISHING REAMER

Clymer 22-250 REMINGTON ROUGHER REAMER

Clymer 22-250 REMINGTON FINISHING REAMER

Clymer 218 BEE FINISHER CHAMBER REAMER

Clymer 22 K HORNET FINISHER CHAMBER REAMER

Clymer 17 MACH II FINISHER CHAMBER REAMER

Clymer RIMFIRE RIFLE/AUTO PISTOL FIN. STYLE FITS .17 HMR

Clymer 12 GAUGE BACK-BORE REAMER .740 DIA.

Clymer 12 GAUGE BACK-BORE HANDLE

Clymer 260 REMINGTON LIVE PILOT FINISHER

Clymer SHOTGUN BARREL FACER (NO PILOT)

Clymer Thrust Bushing Gunsmithing Tool Accessory

Clymer .30-06 Pull Through Chamber Reamer Gunsmithing Tool

Clymer BUSHING 12 GA .729 (18.5MM)

Clymer BUSHING 12 GA .725 (18.4MM)

Clymer BUSHING 20 GA .614 (15.6MM)

Clymer BUSHING 20 GA .610 (15.5MM)

Clymer RIM CUTTER 55 FITS 12 GAUGE

Clymer NO GO 20 GA HEADSPACE GAUGE STEEL

Clymer G020 20 Gauge Headspace Gauge Steel

Clymer NO GO 12 GA HEADSPACE GAUGE STEEL

Clymer G012 12 Gauge Headspace Gauge Steel

Clymer G045LC 45 Colt Steel Headspace Gauge Gunsmith Tool

Clymer NO GO 7.62X54R HEADSPACE GAUGE STEEL

Clymer 7.62X54R GO GAUGE HEADSPACE GAUGE STEEL

Clymer NO GO 7.62X39MM HEADSPACE GAUGE STEEL

Clymer 7.62X39MM GO GAUGE HEADSPACE GAUGE STEEL

Clymer NO GO 45 ACP HEADSPACE GAUGE STEEL

Clymer 45 ACP GO GAUGE HEADSPACE GAUGE STEEL

Clymer NO GO 44 MAGNUM 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.