Hertel 2351286 Chucking Reamer 1-7/16 in Hss 10 Flute

Product Description

The HERTEL 2351286 is a straight-cylindrical shank chucking reamer designed to finish-ream holes to a precise 1-7/16 inch (1.4375 inch decimal) diameter. Built from high-speed steel (HSS) with a bright, uncoated finish, it features 10 right-hand spiral flutes and a 12 inch overall length with a 3-1/4 inch flute length. This reamer is intended for use in machine spindles, drill presses, lathes, and machining centers where tight bore tolerances are required. Machinists and toolroom professionals use this style of reamer as a finishing pass tool after drilling or boring to achieve accurate hole size and surface finish.

This chucking reamer is suited for production and toolroom environments where repeatable dimensional accuracy in larger-diameter bores is critical. The 1-7/16 inch cutting diameter targets applications in heavy equipment manufacturing, pump and motor component machining, and fixture work where holes in the 1.4375 inch range require clean, straight walls. The straight-cylindrical shank seats directly in standard drill chucks or collet holders, making setup straightforward on most machine tool spindles.

Key Features

• 1.4375 inch cutting diameter for accurate finish reaming of 1-7/16 inch bores
• 10 right-hand spiral flutes for smooth cutting action and efficient chip evacuation
• HSS construction provides toughness across a range of workpiece materials
• Bright/uncoated finish — no coating buildup to affect dimensional tolerance
• 12 inch overall length with 3-1/4 inch flute length for reach in deeper bores
• Straight-cylindrical shank for direct mounting in standard drill chucks or collet holders

Compatibility

Designed as an OEM-style chucking reamer for use in drill presses, lathes, machining centers, and other machine tools equipped with a standard drill chuck or collet holder sized to accept a straight-cylindrical shank in the 1-7/16 inch diameter class.

Installation Notes

Chucking reamers are installed and serviced by machinists and toolroom technicians. Secure the straight-cylindrical shank firmly in a properly sized drill chuck or collet before use, and confirm runout is within acceptable tolerance before taking a finishing cut. Always reduce spindle speed relative to drilling and apply appropriate cutting fluid for the workpiece material. Never use a chucking reamer to remove excess stock — pre-drill or bore the hole to within standard reaming allowance before reaming to final size.