Handdo 9pcs 2 Boring Head R8 Shank 1/2 Carbide Boring Bar Set Milling

2 Boring Head With R8 Shank Head size: 2 Boring bar Hole: 1/2 Cross Hole Dia: 1/2 Maximum Offset: 5/8 Thread: 1.5 -18 Graduations: 0.001/0-50 Center Distance bt 2 bottom hole: 0.60 With R8 Shank A micrometer lead screw provides 0.0001 direct reading accuracy and ease of adjusting When the direction of the dial is reversed the backlash between the gear train is listed below. OVERALL LENGTH --- BORE DEPTH --- MIN. BORE 2-1/4 -------- 3/4 --------- 5/16 2-5/8 -------- 1-1/8 ------ 5/16 3 -------------- 1-1/2 ------- 5/16 2-5/8 ------- 1-1/8 ------- 7/16 3-3/16 ----- 1-11/16 --- 7/16 3-3/4 ------- 2-1/4 ------- 7/16 3 ------------- 1-1/2 ------- 9/16 3-3/4 ------- 2-1/4 ------- 9/16 4-1/2 ------- 3 -------------- 9/16 Packing including 1pcs 2 Boring Head 1pcs R8 Shank 9pcs 1/2 Carbide Boring Bar 3pcs Allen Wrench