Woodworking jig A.Type: Twist Drill Bit B.Material: High Speed Steel C.Use: Wood Drilling D.Doweling jig kit,dowel pin Woodworking jig A.scope of application : Applicable to punch in the woodB.Specifications are as follows : Length:4-3/4'' Height :2-1/2'' Width:4'' Maximum capacity : 2''C.Sleeve: 1/4'' , 5/16'' , and 3/8'' , Two each Woodworking jig