Description:

The Pro-Edge 1SQ1 #1 Square Insert Bit is engineered for precision fastening and dependable performance in professional and DIY applications. Designed for use with #1 square (Robertson) fasteners, this 1" insert bit is ideal for tight access areas and repetitive fastening tasks.

Manufactured from high-grade S2 tool steel and built to meet ANSI standards, this bit is precision milled for an accurate fit that reduces stripping and cam-out. With a Rockwell hardness rating of 58–62 HRC, it offers excellent strength, durability, and extended service life under demanding conditions.

Specifications:

• Model: 1SQ1

• Tip Size: #1 Square (Robertson)

• Length: 1"

• Shank: 1/4" Hex

• Material: High-Grade S2 Tool Steel

• Hardness: 58–62 HRC

• Standard: ANSI Compliant

• Packaging: Available in quantities of 25 & 50