Value Collection SC10905S Countersink Set 5 Pc Hss

Product Description

The VALUE COLLECTION SC10905S is a 5-piece countersink set designed for creating clean, tapered seat recesses in metal, wood, and composite materials. Each countersink features a single flute and a 90-degree included angle, covering head diameters from 1/4 inch up to 1 inch. The tools are machined from high speed steel (HSS) with a bright polished finish that reduces friction and makes wear easy to monitor. Straight shanks range from 1/4 inch to 1/2 inch in diameter, providing compatibility with standard drill chucks and quick-change holders. The set ships stored in a fitted wood block for organized access on the job.

This countersink set is suited for machinists, tool and die technicians, fabricators, and maintenance professionals who regularly countersink fastener holes across a range of diameters. The five-piece assortment covers the most common screw head sizes encountered in general metalworking and millwork applications. Right-hand cutting direction makes these tools compatible with standard drill press and handheld drill operation. The 45-degree centerline angle and single-flute geometry produce a smooth, chatter-resistant cut on both ferrous and non-ferrous workpieces.

Key Features

• 5-piece set covering head diameters from 1/4 inch to 1 inch
• 90-degree included angle for standard flat-head fastener seating
• Single-flute design reduces chatter and produces a cleaner finish
• High speed steel construction for durability across a range of materials
• Bright polished finish minimizes friction during cutting
• Fitted wood storage block keeps the set organized and protected

Compatibility

Designed as a general-purpose countersink set compatible with standard drill presses, hand drills, and CNC machines accepting straight-shank tooling with 1/4 inch to 1/2 inch shank diameters.

Installation Notes

Countersinks should be installed by machinists or skilled tradespeople familiar with rotating cutting tools. Always secure the workpiece firmly before operation and set drill speed appropriate to the material being cut — lower speeds are recommended for harder metals. Inspect each countersink for wear or chipping before use and replace any tool showing visible damage. Do not exceed the rated shank diameter for the chuck or collet being used.