center drill is made of high speed steel drill bit and quenching treatment shell designed. High hardness, durable and superior drilling performance
Drill bit set for drilling holes in both hard and soft wood
1/4in diameter straight bit； 1/2in diameter straight bit； 3/4in diameter straight bit； 1/2in diameter flush trim bit； 3/8in depth rebate bit； 1/2in diameter V-groove bit； 5/8in height 45-deg chamfer bit； 1/2in diameter core box bit； 3/8in radius cove bit； 1/4in radius round over bit； 3/8in radius round over bit； 1/2in radius round over bit； 5/8in height ogee moulding bit； 3/8in diameter keyhole bit； 9/16in diameter dovetail bit； Wooden case
