Stroke: 4-Stroke

Core barrel with the letter "S" in the product code indicates that this core is the smallest variant

90-degree long nose design provides better access when working in narrow

• 360 degree auxiliary handle

it delivers smooth cutting performance across various metal materials

Bosch HSS-G Power Change Mandrel Drill Bit 3/8"x8.7mm (2608594253) Gasoline Engine Maintenance Stroke: 4-StrokeBosch HSS G Power Change Mandrel Drill Bit 3 8"x8. 7mm (2608594253) Shank: Hex 6. 35mm 1 4" Inch Pilot Drill: HSS G 7. 15mm x 85mm Compatible with Holesaws: 16mm 210mm FEATURES: 1 4 Inch Hex Arbor complete with 7. 15mm diameter x 85mm long HSS G Pilot Drill suitable for Bosch Progressor Hole saw ranged Fast tool free hole saw change using the Bosch Power change Adapter Power Change Plus System offers more precision than its predecessor Reinforced