Down-Cut Spiral-Bit Router-Bit 1/4" x 1"

Carbide up or down spiral bits combine effective chip removal with a cut as compared to standard straight bits. Double flutes. Computer designed flutes provide the chip removal required in production settings. For cutting mortises, grooves, dadoes, and routing deep blind holes with effective chip removal. Carded.No. 75-100: 1/8" diameter, up spiral, 1/4" shankNo. 75-102: 1/4" diameter, up spiral, 1/4" shankNo. 75-106: 3/8" diameter, up spiral, 1/2" shankNo. 75-108: 1/2" diameter, up spiral, 1/2" shankNo. 76-102: 1/4" diameter, down spiral, 1/4" shank