Precision Twist Drill 6000135 Spotting Drill 90 Deg 1 in

Product Description

The PRECISION TWIST DRILL 6000135 is a 90-degree spotting drill designed to create accurate center points and chamfered starter holes for follow-on drilling operations. Built from high speed steel (HSS) with a titanium nitride (TiN) coating, it delivers improved surface hardness and extended tool life compared to uncoated HSS. The cutting diameter is 1 inch, the overall length (OAL) is 6 inches, and the flute length is 2.25 inches. The straight-cylindrical shank measures 1 inch in diameter for direct chuck or toolholder engagement. This is a single-ended, right-hand cut tool suited for general-purpose metalworking applications.

The 6000135 is used in production machining, tool-and-die, and maintenance-repair operations where precise hole location is required before drilling, reaming, or tapping. The 90-degree included angle aligns with standard countersink geometry and is compatible with conventional drill press, CNC machining center, and manual lathe setups. Its spiral flute design promotes chip evacuation during the spotting operation. Machinists, tool-and-die makers, and maintenance technicians working with ferrous and non-ferrous metals are the primary users of this tool.

Key Features

• 90-degree drill point angle for accurate spot and chamfer alignment
• High speed steel construction provides toughness across a broad range of workpiece materials
• TiN coating increases surface hardness and reduces friction at the cutting edge
• 1-inch cutting diameter with 2.25-inch flute length for adequate chip clearance
• Straight-cylindrical 1-inch shank fits standard chucks and collet holders
• Right-hand cut, single-ended, Series SPSG-90 — two spiral flutes

Compatibility

Designed as a general-purpose spotting drill for use in drill press, CNC machining center, and manual lathe applications requiring a 1-inch diameter, 90-degree spot or chamfer on ferrous and non-ferrous workpieces. Part of the PRECISION TWIST DRILL SPSG-90 series.

Installation Notes

Installation and use of this tool should be performed by qualified machinists or tooling technicians familiar with cutting tool safety. Secure the straight-cylindrical shank firmly in a properly sized chuck or collet before operation. Confirm spindle speed and feed rate are appropriate for the workpiece material and tool diameter before engaging the cut. Always wear appropriate personal protective equipment including eye protection when operating rotary cutting tools.