Value Collection SM34MT03 3MT Morse Taper Reamer Hss

Product Description

The VALUE COLLECTION SM34MT03 is a 3MT Morse taper reamer designed to finish-ream Morse taper sockets to precise dimensional tolerances. Constructed from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent cutting performance across a range of ferrous and non-ferrous materials. The straight flute geometry provides smooth chip evacuation and stable cutting action. Key dimensions include a small end diameter of 0.7748 inches, a large end diameter of 0.9881 inches, a 7/8-inch straight (cylindrical) shank, a 4.25-inch flute length, and an overall length (OAL) of 7.25 inches. The right-hand cut orientation suits standard drill press and milling machine setups.

This reamer is used in machine shops, toolrooms, and maintenance environments where Morse taper spindle bores, sleeves, and sockets must be sized or refinished to No. 3 Morse taper specifications. Typical applications include reconditioning taper bores on drill presses, lathes, milling machines, and grinding spindles. It is suited for both production and repair work where tight taper-fit accuracy is required. The cylindrical shank allows direct chucking in a drill chuck or collet without a taper adapter.

Key Features

• 3MT Morse taper profile with a small end of 0.7748 inches and large end of 0.9881 inches
• High-speed steel construction for durability across a broad range of workpiece materials
• Straight flute design promotes chip clearance and consistent surface finish
• Right-hand cut orientation for use with standard clockwise spindle rotation
• Bright/uncoated finish — no coating thickness to account for in final bore sizing
• Cylindrical shank (7/8 inch diameter) for direct chucking without an adapter

Compatibility

Designed as an OEM-style replacement or standard toolroom reamer for machining and reconditioning No. 3 Morse taper bores in machine tool spindles and taper sleeves.

Installation Notes

Installation and use of this reamer should be performed by a qualified machinist familiar with taper reaming procedures. Secure the workpiece and ensure the spindle is properly aligned with the bore axis before reaming to avoid bell-mouthing or taper deviation. Apply an appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Never reverse spindle rotation while the reamer is engaged in the bore, as this can damage the cutting edges.