Razor-sharp serrated edge for fast and flawless cutting
Quality forged construction for extended life
Ultra-sharp spur to ensure an accurate starting hole
Steep angled cutting edges, produce holes that are smooth and flat and create chisel-like curls for fast, clean chip removal

3/8 inch shank 1-7/8 inch x 3-1/2 inch overall length. Precision Shear Forstner Bits feature a double-ground, razor-sharp serrated edge that slices throughout the rotation of the bit for less splintering and chipping, producing flawless flat-bottom holes. This unique geometric design has multiple cutting edges that produce greater shearing action, allowing for faster rotational speeds and more efficient cutting. Competitive Forstner Bit designs produce small chips and dust that collect in the cutting area, increasing friction and heat, thus causing the bit to dull quickly. Those designs also create holes with rough edges that require sanding. In addition Precision Shear Forstner Bits has serrated edges.

Razor sharp serrated edge for fast and flawless cutting, 3-1/2", hardened steel body for longer life, ultra sharp spur to ensure an accurate starting hole, steep angled cutting edge to produce chisel-like curls, forged construction for extended life.

IRWIN Insert Bit Set, Steel, Black Oxide, Case, 51 -Piece, Includes: (1) #0, (3) #1, (4) #2, (3) #3 Phillips Screw Driving Bits, (1) #0, (2) #1, (4) #2, (3) #3 Square Screw Driving Bits, (1) 4-5, (1) 6-8, (2) 8-10, (1) 10-12 Slotted Screw Driving Bits, (1) T10, (2) T15, (2) T20, (2) T25, (1) T27, (2) T30 Torx Screw Driving Bits, (1) 5/64, (1) 3/32, (1) 7/64, (1) 1/8, (1) 9/64, (1) 5/32, (1) 3/16 Hex Screw Driving Bits, (1) #1, (1) #2, (1) #3 Star Screw Driving Bits, (1) #4, (1) #6, (1) #8, (1) #10 Two Pin Style Screw Driving Bits, (1) 2-1/4 in Bit Holder